25 Best SEO Tools for Keyword Research in 2026

You have a topic in your head, a spreadsheet with three half-filled columns, and a card you’re not sure you want to hand over — and the free tools keep answering with a volume range instead of telling you whether the keyword is worth writing for.

Google Keyword Planner and Google Search Console are the best free SEO tools for keyword research, and Semrush is the paid all-in-one suite worth the money once free data runs out — Keyword Planner and Search Console cost nothing. These free SEO keyword tools cover both halves of the job: Google’s own volume estimates and your site’s own click data. I’m Fassih Fayyaz, and I’ve done SEO since 2017: agency work first, then consulting and freelance projects, with Ahrefs, Semrush, Screaming Frog SEO Spider, Google Search Console and Google Analytics 4 open in my browser most working days. You’ll leave able to pick the tool that fits your budget and stop paying for the one that doesn’t, whether you’re freelancing, running a small business or working solo. Nobody pays to be in this list, commission rates never move a recommendation, every tool gets its real downsides written out, and I claim hands-on use only for the tools I genuinely run — the rest is written from what each vendor publishes.

Quick Comparison: 25 Keyword Research Tools Side by Side

This table puts the 25 best SEO tools for keyword research side by side, so a freelancer, small business owner or solo operator can compare the job each one does and what it costs to start.

#	Tool	Category	Best use case	Our score	Visit tool
1	Google Keyword Planner	Keyword & topic research	Free search volume and CPC estimates	100/100	Try free
2	Google Search Console	Technical SEO & site health	First-party Google search data	100/100	Try free
3	Surfer	Content optimization	Scoring a draft against the pages that already rank	93/100	Try it →
4	SE Ranking	All-in-one SEO suite	Affordable all-in-one with client-ready reporting	90/100	Try it →
5	Ahrefs	Competitor & backlink research	Competitor keyword and backlink analysis	82/100	Try it →
6	AirOps	Automation & workflows	Running AI content workflows at scale	82/100	Try free
7	Clearscope	Content optimization	Content scoring and topic coverage	81/100	Try it →
8	Semrush	All-in-one SEO suite	All-in-one keyword, competitor and audit work	80/100	Try it →
9	Nightwatch	Rank tracking & reporting	Accurate rank tracking including local results	80/100	Try free
10	Screaming Frog SEO Spider	Technical SEO & site health	Crawling a site to find technical faults	80/100	Try free
11	KeySearch	Keyword & topic research	Keyword research on a small monthly budget	78/100	Try it →
12	AnswerThePublic	Keyword & topic research	Question-based keyword visualization	76/100	Try free
13	SimilarWeb	Competitor analysis	Seeing where a competitor’s traffic comes from	76/100	Try free
14	Webflow	Site building & CMS	Building pages with SEO controls built in	74/100	Try free
15	Google Autocomplete	Keyword & topic research	Free long-tail idea discovery in the search box	26/100	Try free
16	KWFinder	Keyword & topic research	Judging keyword difficulty on a long-tail term	22/100	Try it →
17	Gumloop	Automation & workflows	Automating repeated keyword and competitor pulls	18/100	Try free
18	Allintitle KW Explorer	Keyword & topic research	Checking title-level competition directly	15/100	Try free
19	AlsoAsked	Keyword & topic research	Question and heading ideas from People Also Ask	9/100	Try free
20	Bing Webmaster Tools	Technical SEO & site health	Free technical checks and Bing indexing	9/100	Try free
21	Claude (Anthropic)	Content optimization	Proofreading and tightening a draft	9/100	Try free
22	Google Analytics 4	Traffic analytics	Seeing whether ranked pages hold attention	9/100	Try free
23	Google Trends	Keyword & topic research	Comparing demand between similar keywords	9/100	Try free
24	Keywords Everywhere	Keyword & topic research	Keyword metrics inside the search results page	9/100	Try free
25	Looker Studio	Rank tracking & reporting	Building a client-facing SEO dashboard	9/100	Try free

Use the score column to find the tools worth a closer look and the Best for column to check which one does the job you have in mind.

Which SEO tools are best for keyword research?

Google Keyword Planner and Google Search Console are the best SEO tools for keyword research for most people, with Semrush the paid all-in-one suite for competitor depth — two of those three cost nothing.

Here are the five tools that cover keyword research, competitor gaps, all-in-one work and content scoring:

Google Keyword Planner: free search volume and cost-per-click estimates straight from Google
Google Search Console: free first-party data on the keywords your site already ranks for
Surfer: scores a draft against the pages already ranking for the keyword
SE Ranking: all-in-one keyword, competitor and rank-tracking work from $103.20 a month
Ahrefs: competitor keyword and backlink analysis with a crawl of its own

Google Keyword Planner and Google Search Console cost nothing to use.

Best SEO Tools for Keyword Research

Below is the list of 25 best seo tools for keyword research:

1. Google Keyword Planner — Best for free search volume and CPC data

Google Keyword Planner is the free keyword tool inside Google Ads that reports search volume, competition and cost-per-click for any term, direct from Google’s own query data. It is the only source of Google’s own volume numbers at no cost, and its forecasting shows whether demand for a term is rising or fading before an article is commissioned.

Open Keyword Planner from the Tools menu in Google Ads, using an account that doesn’t need a live campaign running. Choose Discover new keywords, enter one seed topic and read the grouped suggestions with their volume ranges. Switch to Get search volume and forecasts and paste a list of candidate keywords to see volume, competition and CPC side by side. You set location and language before reading anything, which matters more than most people expect: a term that pulls 4,000 searches a month nationally can show a fraction of that in a single city, and the forecast graph separates terms with stable demand from seasonal spikes. When a client asks whether a topic is worth a year of content, the twelve-month curve is the fastest honest answer I can give them.

The interface is written for advertisers, so the language is PPC rather than SEO and the columns talk about impressions and bids. Most accounts see volume ranges rather than exact monthly numbers unless they’re actively spending. And there’s no keyword difficulty score anywhere, which means a high-volume term can look attractive and still be impossible for a new site to rank for. Run any shortlist through difficulty data from a second tool before you commit a publishing calendar to it.

It suits checking real search volume without paying for a keyword tool, especially when you want Google’s own numbers rather than a third-party estimate. Pricing: Free (requires a Google Ads account). No paid tier, one free tool inside Google Ads, and the account itself costs nothing to create.

Key features:

Google’s own monthly search volume ranges
Keyword discovery from one seed topic or a landing page
Cost-per-click and paid competition estimates per term
Historical statistics and 12-month performance forecasts
Location, language and network targeting

Pros:

Free, and the volume data comes from Google rather than an estimate
Forecasting separates rising terms from declining ones
Works for both SEO and paid search planning

Cons:

Requires walking through an advertising dashboard to reach it
Volume arrives as broad ranges unless the account is spending
No difficulty metric, which is the number keyword selection needs

Try Google Keyword Planner free →

2. Google Search Console — Best for the keywords you already rank for

Google Search Console is Google’s own free reporting tool that shows how a verified site appears in Google Search: the queries it ranks for, the pages Google indexed, and the pages Google cannot reach. It is the only keyword source built on Google’s first-party click data rather than a third-party estimate, so it tells you which terms already bring traffic instead of which terms might.

Verify ownership once by DNS record, HTML file upload or an analytics tag, then the property reports for that domain. The Performance report lists every query with impressions, clicks, CTR and average position, and sorting by high impressions and low clicks surfaces titles worth rewriting. Compare mode over two date ranges shows which pages lost clicks, which is the fastest way to find content that needs a refresh — I run that comparison at the start of every month on client properties, and the drop-off list usually writes the next week’s work for me. Submit the XML sitemap under Sitemaps and use URL Inspection to request indexing after a fix. It’s the report I open first on any site I’ve never touched, because the queries already earning impressions are the cheapest rankings available.

Search data lags 24 to 48 hours, so same-day checks show nothing at all. It reports your own site only, so it can never show a competitor’s keywords. And it shows pages and queries but never search volume or difficulty, which means it can’t plan a new article on its own — pair it with a volume source and you have the whole first half of a keyword workflow at zero cost.

It suits any site owner who wants the keywords they already rank for. Pricing: Free. Single free tier, no paid plan, no card and no usage cap.

Key features:

Query, page, country and device performance data with impressions, clicks, CTR and position
Index coverage reporting and URL Inspection with live indexing requests
XML sitemap submission and monitoring
Core Web Vitals and mobile usability reports
Page comparison over two date ranges for traffic-decay spotting

Pros:

First-party Google data, so click and impression numbers are ground truth
Free with no plan limits, trial expiry or credit system
Indexing requests and sitemap submission speed up how fast a fix is noticed

Cons:

24 to 48 hour data lag makes it useless for same-day verification
Own-site data only, so it never reveals competitor keywords
No volume or difficulty metric, which is the number keyword research needs most

Try Google Search Console free →

3. Surfer — Best for scoring a draft against ranking pages

Surfer is a content optimization platform that analyzes the pages currently ranking for a keyword and turns what they share into a term list, outline and length target for your own draft. It replaces guessing whether a draft is competitive with a score measured against the real pages holding the top results.

Create a Content Editor report from the target keyword and the tool builds a term profile, outline and word-count target from the ranking pages. Write inside the editor or paste an existing draft so the content score updates live as you edit. Work the missing-terms and suggested-terms lists, which name the relevant words the draft hasn’t used yet — that list is the part I’d keep if the tool only shipped one thing, because it turns “make this better” into thirty specific edits. Use the structure guidance to check heading count and article length against the pages already ranking, then connect Google Docs or WordPress so the draft stays in the tool you already write in. On a service page rewrite, the missing-terms list usually closes half the gap in an afternoon.

The entry price is high for a single-purpose tool and it renews monthly. A high score doesn’t guarantee a ranking, and chasing every suggested term can make the writing read for the tool rather than the reader — I’ve watched drafts turn into keyword porridge that way. There’s no technical SEO or backlink functionality inside it, so it can’t replace a crawl or a link tool, and you’ll still need one of those elsewhere in your stack.

It suits writers who want a draft measured against the top-ranking pages and are publishing often enough to justify a monthly fee. Pricing: Starts at $99 per month (Essential); Scale $219 per month; Enterprise custom, with 20% off on annual billing. No free plan, but there’s a 7-day money-back guarantee and free standalone tools including an AI content detector and humanizer.

Key features:

Live content score measured against the ranking pages for a keyword
Missing and suggested term lists with target usage counts
Outline and heading-structure recommendations from the SERP
Google Docs and WordPress integrations
Surfer AI drafting and AI-search optimization modules

Pros:

Scores a draft against the real competing pages instead of a generic checklist
The missing-terms list is a concrete edit list, not advice
Google Docs integration keeps the workflow inside the writing tool

Cons:

The monthly price is hard to justify on a small site with few articles
Score-chasing can flatten the writing voice
Content only, with no technical or backlink coverage

Try Surfer →

4. SE Ranking — Best for an affordable all-in-one suite

SE Ranking is an all-in-one SEO platform whose keyword tool generates similar, related, question-based and low-volume keyword groups, each backed by volume, difficulty, intent and a live read of the results page. It already groups and classifies suggestions by type, which removes the manual sorting step between a raw keyword dump and a usable content plan.

Enter a seed keyword and a location in the Keyword Generator, then read the four classified groups: similar, related, question-based and low-search-volume. Filter the suggestion table by volume, difficulty, word count, intent or competition to isolate the long-tail slice worth targeting. Open the SERP Overview tab on a keyword and click the keyword count beside any ranking page to launch a competing-domain analysis — that two-click path from “this term looks good” to “here’s who owns it” is the part the platform does better than its price suggests. Save filtered lists into the Keyword Grouper, then push them into the Content Editor or Rank Tracker without leaving the platform. The research, the writing plan and the position report all sit in one login, which is what a freelancer juggling four client sites actually needs.

Plan names and prices change often, so check the vendor’s own page before you quote a figure to a client. The structure is built for people managing several sites, so single-site use is poor value. Rank tracking accuracy has drawn user complaints relative to specialist trackers, so treat position data as directional rather than exact.

It suits a small agency or freelancer running research for several clients who wants research, competitor data and reporting in one subscription. Pricing: Core from $103.20 per month; Growth from $223.20 per month on the current published plans. Core covers rank tracking across engines with unlimited keyword and competitor research; Growth adds multi-client workflows and an API with 300,000 credits. Add-ons run Agency Pack $69/mo, AI Search $71.20/mo and API from $149/mo. The free Keyword Tool allows 3 reports per day showing the top 10 ranking pages and a limited suggestion set, and there’s a 14-day full trial with no card.

Key features:

Keyword Generator with similar, related, question-based and long-tail classification
Per-keyword volume, difficulty, CPC, competition, intent and global volume
SERP Overview with competitor keyword and domain breakdown
Keyword Grouper, Content Editor and Rank Tracker integration
Keyword Research API for bulk analysis of large lists

Pros:

Suggestions arrive pre-classified, which saves the sorting step
Competitor keyword lists are reachable from the SERP Overview in two clicks
Data coverage spans a very large keyword database across many countries

Cons:

Pricing and plan structure change often, which makes budgeting harder
Poor value for a single-site owner
Rank-tracking accuracy complaints recur among users

Try SE Ranking →

5. Ahrefs — Best for competitor keyword and backlink gaps

Ahrefs is an SEO data platform built on its own web crawl, covering keyword research, competitor keyword and backlink analysis, rank tracking and site audits. Its Keywords Explorer and Site Explorer expose the exact queries a competitor ranks for and the pages earning their links, which is how you find a topic gap rather than guess at one.

Enter a competitor domain in Site Explorer and open the Organic keywords report to see every query they rank for with volume, difficulty and their position. Use the Keyword Gap report to compare up to five domains and isolate the terms a competitor ranks for and you don’t — that’s how I find the pages a client should have written six months ago. Type a seed into Keywords Explorer and switch between the Matching terms, Questions and Parent topic tabs to size a topic cluster, then check the Traffic potential figure rather than the keyword’s own volume, because it reports what the top page actually earns. Ahrefs has been one of my daily tools for years, and Traffic potential is the number I trust most when two terms look equally attractive on volume alone.

The useful tiers are the most expensive in this list, and the credit system consumes budget quickly on large reports. Rank tracking accuracy trails the dedicated trackers on some SERPs. Third-party traffic estimates still diverge from your own analytics, so treat them as directional rather than as the truth your client’s dashboard shows.

It suits finding and validating the keywords a competitor already wins, especially when backlink strength is part of the decision. Pricing: Starter from $29 per month; Lite from $129 per month on the annual rate; Standard $249; Advanced $449. Starter carries 200 credits and a reduced tool set. No free plan, but the free standalone tools include a Keyword Generator, Backlink Checker and Webmaster Tools.

Key features:

Keywords Explorer with keyword difficulty, traffic potential and parent topic clustering
Site Explorer organic keywords and top pages reports
Keyword Gap comparison across up to five domains
Backlink index with referring domains, anchors and link growth tracking
Site Audit crawler and Rank Tracker

Pros:

Competitor keyword and backlink depth that no free tool reproduces
Traffic potential shows the traffic a term is worth, not just its volume
Extensive free documentation and training material

Cons:

The cheapest full plan is expensive for a solo site
Credit-based model punishes large exports
Rank tracking is less precise than specialist trackers

Try Ahrefs →

6. AirOps — Best for running keyword workflows at scale

AirOps is an SEO workflow platform that chains data providers, AI models and a CMS so keyword-driven content tasks run in bulk with brand rules applied. It takes the keyword list you researched and turns it into published, brand-consistent pages without a manual handoff at each step.

Connect a data source such as DataForSEO alongside a model, then define the prompt steps once and run them over a whole keyword list. Load brand guidelines into a brand kit so every generated draft follows the same voice before a human edits it, which is the difference between bulk output that needs a rewrite and bulk output that needs a read-through. Connect the CMS so finished pages publish to the site directly rather than being exported and pasted, and use the free Answer Engine Visibility tool separately to check how the site is cited in AI answers. A 200-page location set that used to take a fortnight of copying and pasting becomes an afternoon of review, and the review still has to happen.

Paid pricing is quote-only, so the real cost is unknown until you talk to sales, which is an awkward conversation when you’re a solo operator with a fixed budget. It scales whatever process you feed it, including a thin one, which is how bulk content goes wrong — the tool won’t tell you the page shouldn’t exist. There’s no keyword database of its own, so it depends on a separate data subscription you’re already paying for somewhere else.

It suits teams publishing keyword-targeted pages at volume, not someone writing four posts a month by hand. Pricing: Free plan, then custom pricing for paid plans. Solo runs $0 with one brand kit and up to 1,000 tasks per month; Scale and Agency are custom tiers with three brand kits and multi-account CMS integrations. The free plan includes the Answer Engine Visibility tool.

Key features:

Visual workflow builder over SEO data providers and 30+ AI models
Brand kits that hold voice and style rules
CMS integrations for direct publishing
Free Answer Engine Visibility tool
Task-based usage metering

Pros:

Publishes at scale without manual handoffs between research and CMS
Brand kits keep bulk output consistent
Free plan with 1,000 tasks is enough to test the workflow

Cons:

Paid plans are quote-only, which makes budgeting hard
No keyword database of its own
Bulk generation amplifies a weak content process

Try AirOps free →

7. Clearscope — Best for content scoring and topic coverage

Clearscope analyzes the pages ranking for a keyword and produces a report of the terms, concepts and questions a draft should cover, with a letter grade as you write. Its term recommendations are quality-filtered rather than scraped term frequency, so covering them improves the page rather than padding it.

Create a report from the target keyword and the tool returns a term list with target counts and the headline topics from the ranking pages. Write or paste the draft into the report and watch the content grade update as terms are covered. Work the outstanding-terms panel first, since it lists the concepts the draft is genuinely missing — the filter is doing real work here, so you’re not being told to say “best” eleven times. Use the Content Inventory and Content Decay views on existing pages to spot articles losing traffic that need a refresh, which turns a one-off optimization tool into a maintenance routine. The decay view is the one most people forget, and it’s the one that pays for the subscription on a site with three years of old posts.

The entry plan is expensive and the jump to Business adds a manager rather than more reports, which is confusing value. There’s no free plan or trial, so a test costs a month’s subscription — an expensive way to find out the tool isn’t for you. It optimizes content only and has no technical or backlink functionality.

It suits editorial teams scoring drafts for full topic coverage where the writing volume justifies the fee. Pricing: From $189 per month. Essentials runs $189/mo with monthly content reports and keyword discoveries; Business is $399/mo and adds a dedicated account manager; Enterprise is custom. No free plan and no trial, so a demo has to be requested.

Key features:

Content report with graded terms and target counts
Live content grade while writing
Google Docs and WordPress integrations
Content inventory and content-decay monitoring

Pros:

Term recommendations are filtered for quality rather than raw frequency
The content grade gives writers a clear signal before publishing
Content decay tracking turns the same tool into a maintenance workflow

Cons:

Expensive entry point with no free trial
Plan tiers differ by support level rather than report volume, which is poor value at the top
Content-only, with no keyword discovery at depth

Try Clearscope →

8. Semrush — Best for one subscription for the whole job

Semrush is an all-in-one SEO platform that combines a very large keyword database with competitor traffic analysis, rank tracking, site auditing and backlink data in one subscription. One login answers both halves of keyword research — what the demand is and what the competitor already does with it — which removes a second subscription and a second data source to reconcile.

Start in Keyword Magic Tool: enter one seed and the tool returns thousands of variants with volume, keyword difficulty and intent, filterable in the same table. Open Keyword Overview on a single term to see its volume, trend, difficulty, SERP features and the pages ranking for it side by side. Run Domain Overview on a competitor to read their estimated traffic, top keywords and top pages before deciding which gap to attack, then save filtered keyword lists into a Position Tracking campaign so the terms you chose start reporting daily movement. Semrush has been in my daily stack for years, and the reason is boring: volume, difficulty and intent sitting in one table is what keyword selection actually needs, and almost nothing else puts all three there without a second login.

The Pro tier is the highest recurring cost in a small stack and it renews monthly. Project and keyword limits and per-report unit costs bite faster than the pricing page implies, so the cheap-looking tier stops looking cheap in month three. The dashboard surfaces dozens of tools at once, so the first week is spent working out which three reports matter — budget that week, because it’s real.

It suits anyone who wants a single subscription covering research, competitor data and tracking rather than four tools that each do a quarter of the job. Pricing: Pro from $139.95 per month, or $117.33/mo billed annually; Guru $249.95; Business $499.95. Pro carries 5 projects, Guru 15 projects with multi-location support, and Business 40 projects with API access. A limited free account allows 10 Analytics reports per day and 10 tracked keywords, and the free Keyword Magic Tool has a daily query cap.

Key features:

Keyword Magic Tool with volume, keyword difficulty, intent and SERP features per term
Keyword Overview with trend, global volume and ranking pages
Domain Overview competitor traffic and top pages
Position Tracking with daily updates and alerts
Site Audit crawler, Backlink Analytics and ContentShake AI

Pros:

The largest keyword database in this comparison, so obscure long-tail terms are still covered
Volume, difficulty and intent sit in one table, which is the pairing keyword selection needs
Competitor traffic estimates and rank tracking in the same account as the research

Cons:

The monthly cost is hard to justify before the site earns revenue
Report units and project caps force an upgrade as usage grows
Interface breadth is overwhelming at the start

Try Semrush →

9. Nightwatch — Best for local and multi-engine rank tracking

Nightwatch is a rank tracker that reports daily keyword positions globally and locally, with reporting and Looker Studio integration built around client work. It turns keyword choices into a measurable position line, including the local grid results that national trackers flatten into one number.

Add the domains and keyword set you want to follow, then set the location granularity — country, city or a local grid around a business address. Connect Google Analytics and Search Console so position changes sit beside traffic changes in the same report. Use the cannibalisation detection to find two pages competing for the same term before deciding which to merge, which solves in one report a question most suites leave to manual checking. Schedule automated reports to a client or a stakeholder email so progress arrives without anyone logging in. For a plumber or a dental practice with a service radius, the local grid is the whole point: position 4 nationally means nothing next to position 12 in the suburb where the customers are.

Cost scales directly with keyword count and multiplies across locations, so a large local campaign gets expensive quickly. It tracks and reports, and doesn’t do keyword discovery or competitor research, so it’s one component rather than a stack. Local grid tracking consumes keyword allowance faster than a plain national check. There’s no free plan at all — only a 14-day trial, so the numbers you build during those two weeks are the numbers you’re deciding on.

It suits tracking positions precisely, including local grid results, once there’s traffic worth tracking. Pricing: From $39 per month for 250 tracked keywords. Keyword-count tiers run $39/mo for 250 keywords, $59/mo for 500, $99/mo for 1,000, rising with volume, and every plan starts with a 14-day free trial.

Key features:

Daily position tracking with country, city and local grid granularity
Google Analytics, Search Console and Looker Studio integrations
Keyword cannibalisation detection
Automated scheduled reports
Rank tracking across Google, Bing and YouTube

Pros:

Local grid tracking is deeper than most general rank trackers
Cannibalisation detection answers a question the suites leave to manual work
Report scheduling suits client-facing work

Cons:

Cost rises steeply with keyword and location count
No keyword research or backlink data
Priced per keyword rather than per project, which penalises large sites

Start Nightwatch’s 14-day trial free →

10. Screaming Frog SEO Spider — Best for crawling a site for indexing faults

Screaming Frog SEO Spider is a desktop crawler that walks a site like a search engine and reports every URL’s status, metadata, links and technical faults in a filterable table. It finds the indexing faults — accidental noindex tags, redirect chains, duplicate titles, orphan pages — that quietly stop a page ranking no matter how good the content is.

Crawl the site in list mode from a sitemap or in spider mode from the homepage, then read the response codes report first. Filter the Internal tab by title and meta description to find duplicates and missing tags across the whole site at once. Open the Directives tab to catch noindex and nofollow tags, including the accidental ones left by a staging push — that single tab has saved more client rankings for me than any other screen in the tool. Enable JavaScript rendering and compare against the raw HTML crawl to see what search engines only see after rendering. I run it on every new property before touching content, and I run it again after any migration, because migrations are where the accidental noindex tags live.

It’s desktop software, so a large crawl is limited by your own machine rather than a server. The free tier stops at 500 URLs, which most real sites exceed. The output is a dense table of technical findings with no prioritization, so you still have to judge what matters — the tool tells you 4,000 titles are too long and nothing about which four matter.

It suits auditing a site for indexing and structural problems, ideally before you spend money on keyword research for pages nobody can reach. Pricing: Free version available; paid license $279 per user per year (£199). The free version crawls up to 500 URLs with most checks enabled but no saved crawls, JavaScript rendering, custom extraction, scheduling or API access, and volume discounts start at five licenses.

Key features:

Full-site crawl with response codes, redirects and broken links
Title, meta description, H1 and duplicate content reporting
noindex, nofollow and canonical directive auditing
JavaScript rendering and rendered-HTML comparison
Sitemap generation and XML sitemap comparison

Pros:

Finds indexing faults no browser-based tool reports
A single license covers unlimited crawls, unlike credit-based tools
The 500-URL free tier covers a small site completely

Cons:

Desktop-only, so crawl size depends on your hardware
The interface is dated and the output needs technical reading
No keyword or content research of any kind

Try Screaming Frog SEO Spider free →

11. KeySearch — Best for real keyword research on a tight budget

KeySearch is a low-cost keyword research platform that covers keyword discovery, difficulty scoring, competitor analysis and rank tracking using Moz link metrics for its authority scores. It delivers most of what the expensive suites do at roughly a fifth of the price, which matters when the keyword research budget is genuinely small.

Enter a seed in Keyword Research and the tool returns related terms with volume, CPC and a color-coded difficulty score in one table. Switch to the Competition tab on any keyword to see the top ten pages, their authority and word counts, which shows whether the term is winnable — for a new site, that tab is the difference between a plan and a wish list. Use the YouTube Keyword Research tab for video terms, which the general suites handle less directly. Add chosen keywords to the Rank Tracker to follow their positions against the site’s daily allowance. For a blogger publishing twice a week on a $24 budget, the flow from seed to shortlist to tracked position happens without a single spreadsheet export.

Difficulty and authority figures come from the Moz index, so they don’t always agree with Ahrefs or Semrush scores on the same term — expect a 10 to 15 point gap on some keywords and don’t treat either as gospel. The interface is slow on some reports and the search-per-day caps are hard ceilings rather than soft guidance. Support is a small team, so a complex billing or data question can take a while to resolve.

It suits running real keyword research on under $30 a month, especially where rank tracking and competitor checks matter as much as raw volume. Pricing: Starter $24 per month; Pro $48 per month. Starter covers 200 keyword searches per day, 80 tracked keywords and 5,000 AI credits; Pro covers 500 searches per day, 200 tracked keywords and 15,000 AI credits. No permanent free plan, but there’s a 7-day trial and free standalone tools such as the keyword difficulty checker.

Key features:

Keyword research with volume, CPC and color-coded difficulty
Competition analysis showing the top ten ranking pages per term
Rank tracking with per-plan keyword limits
YouTube keyword research and backlink analysis
Foresight keyword forecasting on the Pro plan

Pros:

The cheapest plan in this list that still does keyword research, competitor analysis and rank tracking
Difficulty scores are color-coded, which makes winnable terms obvious at a glance
Daily search allowances, not credits, so a heavy research day doesn’t run out of budget

Cons:

Metrics come from a third-party index and differ from the bigger suites
Some reports load slowly and the interface feels dated
Support capacity is small

Try KeySearch →

12. AnswerThePublic — Best for question phrasing for headings

AnswerThePublic collects the questions, prepositions and comparisons people search around a seed term and renders them as a visual wheel of query phrasing. It exposes the exact phrasing of questions real people type, which is what question headings and FAQ answers need to match.

Enter a seed keyword and choose the search source; the wheel groups results into questions, prepositions, comparisons and alphabeticals. Read the questions ring first for section headings and the prepositions ring for the modifiers that separate buying intent from research intent — “for beginners” and “vs” tell you different things about the person typing. Switch the source between Google, YouTube, TikTok, Amazon and Bing to see how the same topic is phrased on each surface. Export the results as CSV and keep the ten to fifteen phrasings that map to a section you’re actually writing. The CSV is the output, not the wheel; the wheel is the thing you screenshot for a client kickoff.

It returns query phrasing with no volume or difficulty, so nothing here is prioritized for you and a phrase that looks perfect can carry no demand at all. The visualization is hard to read at scale and the CSV is the more useful output. The word “free” appears in many suggestions because that’s how people type, not because demand is commercial, so filter accordingly before you build a page around it.

It suits harvesting question phrasing for headings and FAQ answers, then validating those phrasings elsewhere. Pricing: Free with 3 searches per day; paid plans from $11 per month. Individual runs $11/mo with 100 searches per day, Pro $99/mo with unlimited searches, and Expert $199/mo with unlimited searches plus team seats, each with a 7-day trial. The free tier covers 3 searches a day across Google, YouTube, TikTok, Amazon and Bing.

Key features:

Question, preposition, comparison and alphabetical query groupings
Visual search wheel with CSV export
Five search sources including Google, YouTube, TikTok, Amazon and Bing
Search Listening alerts on higher plans

Pros:

Exposes real question phrasing rather than inferred questions
Covers non-Google surfaces where the same phrases are used differently
Free tier is enough to gather phrasing for one article

Cons:

No volume, difficulty or prioritization
The wheel view becomes unreadable on broad seeds
Free tier is three searches a day

Try AnswerThePublic free →

13. SimilarWeb — Best for checking where a competitor’s traffic comes from

SimilarWeb estimates any website’s total traffic and splits it by channel — direct, search, referral, email and paid — from panel and clickstream data. It shows how much of a competitor’s traffic actually comes from search, which tells you whether their approach to keywords is worth copying at all.

Enter a competitor domain and read the traffic and engagement overview first to size the site. Open the marketing channels view to see the share split between direct, search, referral, email and paid ads before assuming SEO drives the site — plenty of businesses that look like SEO success stories are running paid traffic behind a strong brand. Compare two domains side by side to see whether the smaller site is winning on search share or on a different channel entirely. Use the geography breakdown to check whether a competitor’s traffic is in your target market. Five minutes here saves a fortnight of copying an approach that was never search-led.

Figures are modeled estimates from panel data and can be materially wrong for small sites, sometimes by an order of magnitude. The useful paid tiers are enterprise-priced, so most solo operators only ever use the free plan. It reports channel-level traffic, never the individual keywords behind it, so it answers “is search their channel” and never “which terms do they win”.

It suits checking how much of a competitor’s traffic comes from search before committing to a content plan that copies them. Pricing: Free plan available; paid plans from about $125 per month billed annually ($1,500/year). Starter runs about $125/mo annual with 1,000 keywords per table, Professional about $333/mo annual with historical data and 5,000 keywords, and Team and Enterprise tiers are custom. The free plan carries limited website traffic and channel-mix data.

Key features:

Total visits and engagement estimates per domain
Marketing channel split including organic search share
Geographic and audience-interest breakdowns
Side-by-side domain comparison

Pros:

Shows whether search is genuinely a competitor’s main channel
Free plan covers a domain-level check
Geography data reveals whether a competitor shares your market

Cons:

Estimates drift on smaller sites
Paid plans are out of reach for solo operators
No keyword-level data

Try SimilarWeb free →

14. Webflow — Best for building pages with SEO controls

Webflow is a visual website builder and CMS that exposes SEO fields — title, meta description, canonical, alt text, redirects, sitemap — natively rather than through plugins. Because the SEO controls are part of the builder, metadata and canonical tags get set correctly at build time instead of being patched afterwards by a plugin.

Set page-level title, meta description and Open Graph fields in the page settings, and use collection templates so every CMS item inherits correct metadata. Configure 301 redirects in project settings and let the platform generate the XML sitemap automatically. Set alt text on every image in the asset panel, which keeps the accessibility and image-search signals aligned. Use collection pages rather than separate static pages for repeating content so canonical and pagination handling stays consistent. When you’re publishing a hundred service pages from one collection, getting the metadata template right once beats fixing a hundred pages later.

The SEO tooling is a site builder’s, not a research platform’s — there’s no keyword data anywhere in it, so it never tells you what to write about. Migrating an existing site into Webflow is a real project rather than a switch, and budget for it in weeks. CMS item limits on lower site plans cap how much content the site can hold before an upgrade, which is an annoying ceiling to hit in year two.

It suits building a new site with SEO controls in the builder, particularly where a designer and a content plan live in the same project. Pricing: Free Starter plan; site plans from $29 per month. The free Starter plan covers building and a staging domain; a paid site plan is required to publish on a custom domain, and Business and Enterprise tiers add CMS limits, hosting scale and SSO.

Key features:

Native title, description, canonical and Open Graph fields per page
CMS collection templates that apply metadata to every item
Automatic XML sitemap and 301 redirect management
Built-in hosting with CDN delivery
Collection page pagination and canonical handling

Pros:

SEO fields are first-class rather than plugin-dependent
Collection templates keep metadata consistent across many pages
Sitemap and redirects are managed in the same place as the content

Cons:

No keyword or research capability at all
Site migration is substantial work
CMS item caps on lower plans

Try Webflow free →

15. Google Autocomplete — Best for free long-tail idea discovery

Google Autocomplete is the suggestion list that appears under the search box as you type, drawn from what real users search next for that seed phrase. It surfaces long-tail queries with real demand that no volume database lists, which is where a small site finds terms it can actually rank for.

Open an incognito window so results aren’t personalized, then type a seed keyword and read the dropdown without pressing enter. Work the alphabet: type the seed followed by each letter a to z and record every distinct completion. Add question words (how, what, why, can) and prepositions (for, with, without) before the seed to pull different suggestion families. Check the bottom-of-SERP Related searches block, which repeats the same job with a different query set. A 20-minute alphabet sweep on one seed commonly returns 60 to 100 distinct phrases, and the odd ones — the ones that sound wrong — are usually the ones nobody has written for yet.

Suggestions are personalized and location-sensitive, so an incognito window or a chosen location gives cleaner data than your logged-in browser. It returns phrasing, never volume or difficulty, so a term still has to be validated elsewhere. And it shows what people type, not what ranks, so a suggestion can still be dominated by sites you can’t outrank this year.

It suits finding untapped long-tail phrasing before validating it against volume and difficulty data. Pricing: Free. There are no plans; it’s a behavior of the Google search box, entirely free with no account.

Key features:

Real-time query suggestions from Google’s own autocomplete service
Alphabet, question-word and preposition expansion for idea volume
Related searches block at the foot of the results page
Localized suggestions by country and language

Pros:

Free, instant and requires no account or install
Long-tail phrasing that volume tools report as zero
Signals real current demand because the list reflects live searches

Cons:

No volume, difficulty or trend data at all
Personalisation and location shift the suggestions between sessions
Manual collection at any scale becomes slow

Open Google Autocomplete free →

16. KWFinder — Best for judging whether a keyword is winnable

KWFinder is Mangools’ keyword research app, built around a keyword difficulty score and a results-page breakdown that shows whether the pages ranking for a term are beatable. It answers the question volume tools skip — whether a term is winnable — by scoring difficulty against the strength of the pages currently holding the top results.

Enter a seed keyword and a location, then read the suggestion list sorted by difficulty rather than by volume. Open a keyword’s results-page analysis panel, which lists the top-ranking pages with their authority metrics so you can see how strong the competition actually is. Filter suggestions by monthly volume range and difficulty ceiling to isolate the long-tail slice a small site can win. Save the shortlisted terms to the Mangools rank tracker, which comes in the same subscription. The difficulty-first sort is the useful default here; every other tool in this price range opens on volume, which is the metric that gets beginners into trouble.

The inclusion is priced as a Mangools bundle, so there’s no way to buy KWFinder on its own — you’re buying the suite whether you want the other four apps or not. Keyword lookup counts are capped per 24 hours on the Basic plan at 100 lookups, which a serious research session can burn through in an afternoon. The difficulty score is Mangools’ own model and doesn’t match Ahrefs or Semrush numbers on the same term, so don’t mix scores from two tools in one shortlist.

It suits picking low-competition long-tail keywords where difficulty is the deciding metric rather than volume. Pricing: Mangools from $37.70 per month (Basic, $452.40/year billed annually). Basic covers 100 keyword lookups per 24 hours and 200 tracked keywords, with Premium and Agency tiers higher and roughly 35% saved on annual billing. A permanent free Mangools account carries a limited daily allowance, and a 10-day Free+ trial raises the limits.

Key features:

Keyword difficulty score per term
Results-page analysis panel showing the strength of the pages ranking
Long-tail and question keyword suggestions with volume and CPC
Bundled rank tracking and SERP checker apps

Pros:

Difficulty is the headline metric, which is what long-tail selection needs
The SERP panel shows why a term is hard, not just that it is
Bundled with rank tracking in one subscription

Cons:

No standalone KWFinder purchase, only the Mangools bundle
Daily lookup caps on the entry plan
Its difficulty model disagrees with other vendors’ scores

Try KWFinder →

17. Gumloop — Best for automating repeated keyword pulls

Gumloop is a no-code AI workflow builder that connects SEO data sources and LLM nodes so recurring research tasks run on a schedule instead of by hand. It removes the repeated manual loop of pulling competitor data and pasting it into reports, which is the part of keyword research nobody wants to redo weekly.

Build a flow on a visual canvas by dragging a data node (Semrush, Google Analytics, a scraper) and connecting it to an LLM node. Chain the output into a Google Doc or Slack node so a competitor keyword pull arrives as a document or a message without manual export. Use the built-in Semrush and ChatGPT nodes, which the platform supplies inside the flow, to avoid a second subscription for the same job. Ask Gummie, the in-tool assistant, to assemble a first draft of a flow and then adjust the nodes yourself — for a first build that’s faster than reading the documentation, and it produces something you can actually run rather than a tutorial. A weekly competitor keyword digest that used to take an hour on Friday now arrives in Slack before you’ve opened the laptop.

The free plan is one flow’s worth of credits; the jump to a paid tier is the next step and there’s no cheap middle plan, which is a hard gap if you’re testing whether automation is worth it. Flows inherit your own keyword understanding, so a badly framed prompt automates a bad process quickly. The platform ships changes constantly, so an existing flow occasionally needs rebuilding — a maintenance cost that doesn’t appear on the pricing page.

It suits automating a keyword and competitor reporting loop once you already know what you want to repeat. Pricing: Free plan, then Pro from $37 per month. Free carries 5,000 credits, Pro runs from $37/mo with 20,000 credits per month, and Enterprise is custom. The 5,000 free credits are enough to build and run a first workflow properly.

Key features:

Visual no-code workflow canvas with scheduling and webhooks
Built-in Semrush, Google Analytics, Google Docs, Slack and ChatGPT nodes
Gummie assistant that builds or repairs a flow from a plain description
Credit-based pricing across all plans

Pros:

Recurring competitor and keyword pulls run without manual export
Bundled data nodes cut the number of separate subscriptions
Free plan is generous enough to prove the value before paying

Cons:

No middle plan between the free tier and the Pro tier
Useful only if you already know what to automate
Fast release cycle occasionally breaks existing flows

Try Gumloop free →

18. Allintitle KW Explorer — Best for a quick title-level competition read

Allintitle KW Explorer runs allintitle-style competition checks across multiple search sources, not just Google, to show how many pages use a phrase in their title. A low allintitle count is a fast signal that a phrase is under-targeted, and running it beyond Google catches sources other tools ignore.

Enter a candidate phrase and read the count of pages carrying it in the title, which is the proxy for how contested it is. Switch the source filter beyond Google to check marketplaces and other engines where the same phrase competes differently. Run the check on a shortlist of long-tail variants and keep the ones with the lowest title-level counts. Export the comparison to fold into a keyword list alongside volume data from another tool. It’s a 30-second sanity check that sits between idea generation and difficulty scoring: if 40 pages already carry your exact phrase in the title, the difficulty score is going to agree with them.

The free allowance is 10 tokens per month, which is a handful of checks — enough to test the method, not enough to run a campaign on. An allintitle count is a directional signal and not a substitute for a difficulty score, because a low count doesn’t mean the few pages ranking are weak. Outside Google the sources are more limited, so coverage varies and the counts aren’t directly comparable.

It suits a quick title-level competition read on a phrase before you spend research time on it. Pricing: Free tier with 10 tokens per month. Allowances are token-based, and the entry allowance is 10 tokens per month without payment.

Key features:

Allintitle competition counts per phrase
Source filtering beyond Google search
Shortlist comparison across candidate phrases

Pros:

Answers an allintitle question in one step instead of manual search operators
Covers non-Google sources the big suites ignore
Free allowance is enough to test the method

Cons:

Only 10 tokens per month on the free tier
A title-count signal is directional, not a full difficulty model
Limited source coverage outside Google

Try Allintitle KW Explorer free →

19. AlsoAsked — Best for headings from People Also Ask

AlsoAsked maps Google’s People Also Ask data into a branching question tree, showing which follow-up questions appear under a seed term. It turns the PAA box into a heading structure with real search demand behind each branch, which is where question-led sections come from.

Enter a seed keyword and the tool returns a tree of related questions with the relationship between parent and child questions drawn out. Read the tree depth by depth: the first ring is the PAA box, the deeper rings are the follow-up questions Google shows after each expansion. Export the tree as CSV and turn each branch into an H2 or H3 rather than writing new questions from scratch. Set the country before running the search, because PAA results differ by market and a US export gives a UK site the wrong headings. For a FAQ section, the first two rings are usually enough to fill it with questions people actually ask.

The free tier is three searches a day, which runs out fast on a real research session. It returns questions and relationships, not volume, so terms still need validating before they earn a section. Deeper branches reflect Google’s expansion behavior at a point in time and do drift, so an export from six months ago is a historical document rather than a plan.

It suits building question-led headings from real People Also Ask data on one or two priority topics. Pricing: Free with 3 searches per day; paid plans from $12 per month. Basic runs $12/mo with 100 credits, Lite $23/mo with 300 credits, and Pro $47/mo with 1,000 credits. The free tier gives 3 searches a day with no account required.

Key features:

Branching People Also Ask tree per seed keyword
Parent and child question relationships
Country and language targeting
CSV and image export of the full tree

Pros:

Turns the PAA box into a ready heading structure
Shows how questions relate, which is exactly what section ordering needs
Free tier is enough to test the approach

Cons:

No volume or difficulty data
Three searches a day on the free plan
Question trees shift over time, so an old export goes stale

Try AlsoAsked free →

20. Bing Webmaster Tools — Best for a free second technical opinion

Bing Webmaster Tools is Microsoft’s free equivalent of Search Console, reporting how a site performs in Bing search and which technical faults Bing detects. Bing’s index feeds several AI assistants, so the pages Bing cannot crawl are also the pages those assistants cannot cite.

Sign in and import the site directly from Google Search Console, which copies verification and sitemap settings in one step. Open the Site Scan report and work the returned technical issues, which surface some problems more plainly than Search Console does — the missing-description and thin-content flags in particular are blunt in a useful way. Submit the sitemap and use URL Submission to push individual new pages into the Bing index. Use the Keyword Research tool for Bing-specific volume, which differs from Google’s numbers. On a site that’s already verified in Search Console, the whole setup takes minutes rather than an afternoon.

The audience is a fraction of Google’s, so rankings here don’t predict Google rankings. Volume figures are Bing’s own and aren’t transferable to Google planning. The interface is less polished than Search Console and reports load slowly, which is a real cost when you’re checking it weekly rather than once.

It suits a free second technical opinion and Bing indexing, especially on sites that need to be citable in AI answers. Pricing: Free. There’s no paid tier, and the whole product is free with a Google Search Console import path.

Key features:

Site Scan technical audit
URL submission and sitemap management
Search performance and keyword research for Bing
One-click import from Google Search Console

Pros:

Free with an import path that takes minutes from an existing Search Console property
Catches technical faults that Search Console reports less clearly
Indexing here affects whether AI assistants can surface the page

Cons:

Bing search volume is a small share of Google’s
No keyword difficulty or competitor data
Slower and less polished than Search Console

Try Bing Webmaster Tools free →

21. Claude (Anthropic) — Best for editing your own draft

Claude is Anthropic’s AI assistant, used here as a drafting and proofreading partner that rewrites your own sentences into clearer ones rather than generating the article. It fixes tangled sentences and awkward phrasing on text you actually wrote, which is the part of editing that eats the most time.

Paste a paragraph you wrote and ask for a tightened version that keeps your wording, then accept only the edits that preserve your point. Ask it to flag sentences over a set length, which catches the run-ons that make a draft hard to scan. Give it the target keyword and ask whether the first paragraph answers the query plainly, using it as a reader rather than a writer — that trick catches throat-clearing openings better than reading your own work does, because you already know what you meant. Use a project to hold your style rules so every rewrite follows the same house voice. I keep it in the stack alongside ChatGPT for exactly this: tightening my sentences, never inventing them.

It doesn’t know search volume, difficulty or rankings, so it cannot do keyword research. Left to draft whole sections it produces generic prose that reads like every other AI-assisted article, and readers notice. Free tier message limits interrupt a long editing session, usually somewhere in the third document.

It suits editing your own draft before publishing, not replacing the writing. Pricing: Free tier; Pro at $20 per month. Free runs $0, Pro $20/mo, Max tiers higher, and Team and Enterprise plans cover organizations. The free tier carries daily message limits and access to the standard models.

Key features:

Long-context rewriting and proofreading of supplied text
Projects for holding reusable style instructions
Document upload for editing existing drafts
Available on web, desktop and mobile

Pros:

Improves writing you produced rather than replacing it
Fast at catching run-on sentences and unclear phrasing
Free tier is usable for editing without a subscription

Cons:

No SEO data of any kind
Will happily generate filler if asked to write from scratch
Message limits on the free tier

Try Claude free →

22. Google Analytics 4 — Best for seeing whether ranked pages engage

Google Analytics 4 is Google’s free analytics platform, recording who visits a site, which channel sent them and what they did after landing. Search Console shows a page earned a click; Analytics shows whether the visitor stayed, which separates a ranking that looks good from a page that works.

Install the measurement tag through a site plugin or tag manager rather than editing theme code. Open the Traffic acquisition report and filter to Organic Search to see the traffic your keyword work actually produced. Check engagement time per landing page to find pages that rank well but lose visitors immediately — a page holding position 4 with an eight-second engagement time is a content problem, not a ranking problem, and the fix is different. Build an exploration that filters referral traffic for AI assistant domains to see how much traffic arrives from AI answers. GA4 has been one of my daily tools since the switch from Universal Analytics, and organic-landing-page engagement is the report I open when a client asks why rankings aren’t producing leads.

The event-based model is unfamiliar to anyone who learned the older version, and reports need configuring before they answer anything. It reports no keyword-level data, so it can never tell you which query brought a visitor. Sampling and thresholding reduce precision on large date ranges and high-traffic properties, so two reports of the same metric can disagree.

It suits checking whether ranked pages keep their visitors, always alongside Search Console rather than instead of it. Pricing: Free. The standard property is free; Analytics 360 is enterprise-priced.

Key features:

Traffic acquisition by channel including organic search
Engagement rate and average engagement time per page
Event-based tracking with custom conversions
Free explorations for custom reports

Pros:

Free with no meaningful traffic cap for a small site
Shows whether the traffic from rankings actually engages
Referral reporting reveals traffic arriving from AI assistants

Cons:

No keyword-level data, so it pairs with Search Console rather than replacing it
Reports need configuration before they are useful
The event model is the steepest part of Google’s free stack

Try Google Analytics 4 free →

23. Google Trends — Best for choosing between two similar keywords

Google Trends reports the relative search interest of a term over time and by region on a 0 to 100 index rather than absolute volume. It settles the tie when two keywords look equally good on volume, by showing which one is actually rising and which is decaying.

Enter up to five terms in the Compare box so the index is normalised against the same baseline, then read which line is climbing. Set the timeframe to 12 months and then to 5 years to separate a seasonal spike from a durable rise. Change the region to the market you actually sell into, because trend shapes differ sharply by country. Open the Related queries view and switch between Rising and Top to catch terms that are growing before volume tools report them. A term showing 60 in one market and 5 in another is a different business decision in each.

The index is relative, so it never gives a monthly search number. Small samples produce jumpy lines that look like trends but are noise, particularly for local or niche terms. A high index doesn’t mean commercial intent — plenty of high-interest terms are researched by students and never bought.

It suits choosing between two keywords with similar volume when one of them needs to be dropped. Pricing: Free. There’s no paid tier, and it’s entirely free with no account.

Key features:

Relative interest over time on a 0 to 100 index
Up to five-term comparison with normalised baselines
Region, timeframe and category filters
Rising and top related queries per term

Pros:

Free and immediate, with no account needed
Settles close calls between two similar keywords
Rising queries surface terms before volume tools catch up

Cons:

Relative index only, never absolute volume
Volatile on low-volume terms
No difficulty or intent data

Open Google Trends free →

24. Keywords Everywhere — Best for keyword metrics inside the results page

Keywords Everywhere is a browser extension that overlays search volume, CPC and competition data directly onto Google, YouTube, Bing and Amazon results pages, plus a live keyword sidebar. It removes the copy-and-paste loop between a keywords spreadsheet and a search results page, so validation happens while you’re already looking at the results.

Install the extension and the metrics appear underneath each result and in the Related keywords sidebar on a Google results page. Turn on the widget for YouTube, Bing, Amazon, eBay and Etsy to see surface-specific volume without leaving the page. Use the bulk upload tool to pull metrics for a keyword list you already have, rather than typing terms one at a time. Watch the credit balance in the extension popup, since each metric lookup spends credits. The real value is in the sidebar while you’re reading a results page: you see a competitor ranking for a term you’d never have typed into a research tool, and the volume is right there next to it.

Everything beyond the basic overlay runs on credits that deplete with use, and bulk lookups burn through them fast. The extension adds a visible layer to search pages, which some users find cluttered enough to switch off. There’s no difficulty metric, so it cannot judge whether a term is winnable — it tells you the size of the prize, never the strength of the door.

It suits checking volume without leaving the results page, especially for marketplace and video surface checks the suites treat as an afterthought. Pricing: Free browser extension; paid credit plans from $7 per month equivalent ($84 billed annually). Bronze runs $84/year with 100,000 credits, Silver $168/year with 400,000, Gold $480/year with 2,000,000 and Platinum $960/year with 8,000,000. The extension installs free and shows a limited metric set; volume and CPC data require a credit balance.

Key features:

In-SERP volume, CPC and competition overlay
Related keywords sidebar on results pages
Support for Google, YouTube, Bing, Amazon, eBay and Etsy
Bulk keyword upload and credit-based pricing

Pros:

Metrics appear where you are already looking, with no context switch
Covers marketplaces and video surfaces the suites treat as an afterthought
Entry credit pack is cheap enough to trial properly

Cons:

Credits deplete quickly on bulk lookups
No keyword difficulty score
Only works inside a supported browser

Try Keywords Everywhere free →

25. Looker Studio — Best for client-facing SEO reporting

Looker Studio is Google’s free reporting layer that pulls Search Console, Analytics and third-party data into shareable dashboards. It turns scattered keyword and traffic sources into one page a client or a stakeholder can read without a login to each tool.

Start from a gallery template for SEO reporting and replace the data sources with your own Search Console and Analytics properties. Blend Search Console query data with Analytics landing-page data so a single table shows both the query and what happened after the click. Split the report into pages for branded versus non-branded search so a brand-driven traffic spike doesn’t read as SEO progress — that one split has saved more uncomfortable client conversations than any other reporting trick I use. Schedule the report to email on a fixed date so the recipient gets it without anyone opening the tool. For a freelancer with six retainer clients, the scheduled send replaces an entire afternoon of monthly screenshotting.

It visualizes data and never generates any, so it inherits every limitation of the sources underneath it. Blends and calculated fields get slow on large date ranges, sometimes slow enough to time out. Search Console data in Looker Studio samples and lags differently from the Search Console interface, so two people reading “the same” number can disagree — always name the source on the dashboard.

It suits reporting keyword and traffic progress to someone else, once there’s a property worth reporting on. Pricing: Free. Looker Studio Pro is a paid per-project tier, and standard connectors and reports are free.

Key features:

Native Google Search Console and Analytics connectors
Data blending across multiple sources
Scheduled email delivery of reports
Template gallery and shareable report links

Pros:

Free and included with the Google tools you already use
Blends query and behavior data into one view
Scheduled delivery removes the manual monthly report

Cons:

No data of its own, only what it is connected to
Slow on large blends
Connector quirks mean the numbers can differ from the source interface

Try Looker Studio free →

The tools that find keywords and the tools that tell you whether a keyword is worth chasing are different purchases, so start with the job you’re actually stuck on — an empty list, an unvalidated list, or a list nobody has written for yet.

Which keyword research tool is best for each job?

Google Keyword Planner at #1 — it’s free, and the volume and cost-per-click figures come straight from Google’s own query data rather than a third-party estimate.

SE Ranking at #4 — it carries keyword generation, competitor research, content editing and rank tracking in one subscription at a fraction of the enterprise suites’ entry price.

Surfer at #3 — it scores your draft against the pages already ranking for the keyword and hands you the missing terms as a concrete edit list.

Nightwatch at #9 — it reports daily positions globally and on a local grid, with the client-ready scheduling and Looker Studio integration the suites treat as an add-on.

Google Search Console at #2 — it’s free, its data is first-party, and it’s the only place you can see which pages Google indexed and request indexing after a fix.

SimilarWeb at #13 — it shows how much of a competitor’s traffic actually comes from organic search before you decide their approach to keywords is worth copying.

Google Analytics 4 at #22 — it’s free and it’s the only tool here that tells you whether the visitors your rankings earned actually stayed and engaged.

AirOps at #6 — it chains your keyword data sources, an AI model and your CMS so keyword-targeted pages publish without a manual handoff at each step.

Webflow at #14 — title, meta description, canonical tags, redirects and the sitemap are settings in the builder rather than a plugin you patch on afterwards.

Read it as a starting point rather than a rule. Most sites end up with a small stack — one research source, one tracker and one free analytics property — because the jobs are genuinely separate, and the fix is different depending on whether you’re stuck on an empty list, a validation number or a report nobody reads.

Which free keyword tools are worth starting with?

Google Keyword Planner and Google Search Console are the two free tools worth starting with, and they cover both halves of the job — Google’s own volume estimates and your site’s own click data.

Start with Keyword Planner if you don’t know what the demand looks like: it reports volume, competition and cost-per-click for any term at no cost, and its forecast graph shows whether interest in a topic is climbing or fading. The stopping point here is a range, not a number — unless the account is spending on ads, volume arrives as a broad band like “1K–10K” and there is no difficulty score anywhere in the report. Practically, that’s still enough to sort a candidate list thrown at it from Autocomplete: a band tells you whether 300 people a month or 30,000 are searching, and that is the only distinction that changes your plan.

Then connect Search Console, which answers the opposite question: which keywords the site already earns impressions and clicks for. Verify the property once, and the Performance report starts filling within 24 to 48 hours, with the first two days of data usually settling later than the rest. It stops at 24 to 48 hours behind and at your own site: it never shows a competitor’s keywords, and it never reports volume or difficulty. Use it as a supply check rather than a discovery tool — sort the Query tab by impressions, find terms sitting at positions 8 to 20, and you have a set of pages that already half-rank and only need a stronger headline, a wider section or a couple of internal links.

Autocomplete returns phrases people actually type after your seed, including long-tail queries volume databases report as zero; work the alphabet in an incognito window and one seed yields 60 to 100 phrases because you get roughly two to four suggestions per letter, and the count barely moves between seeds. The stopping point is that it hands you phrasing and nothing else — no volume, no difficulty, no saved list — so the 60 to 100 phrases are raw material to paste into a tool that has numbers.

Trends reports relative interest on a 0 to 100 index where 100 is the busiest point in the window you picked, which is why a term reading 40 can still be enormous. The number is relative, not absolute, so it settles bread-and-butter calls: two keywords of similar volume where one is climbing and one is decaying, or whether interest is seasonal enough to schedule a page ahead of the peak. Set the window to five years to catch seasonality, twelve months to catch a trend, and add a comparison term to read two lines against each other.

AnswerThePublic and AlsoAsked handle question phrasing, and their free allowances are the tightest here. AnswerThePublic allows 3 searches per day across Google, YouTube, TikTok, Amazon and Bing, with no volume attached; paid plans start at $11 per month. Spend those three on a topic where you genuinely don’t know what gets asked — a service you sell but rarely hear questioned — and pull the export before the counter resets. AlsoAsked allows 3 searches per day and maps People Also Ask into a branching question tree for $12 per month, which is the stronger of the two once you already know the head term and want the questions sitting under it rather than a wheel of prepositions.

Keywords Everywhere installs free as a browser extension and overlays volume, CPC and competition on results pages, but the numbers behind the overlay need a paid credit balance — Bronze starts at $84 per year for 100,000 credits, and one expanded keyword report can spend 40 to 100 of them. Free install, metered data.

SE Ranking’s free Keyword Tool allows 3 reports per day showing the top ten ranking pages, and its 14-day trial needs no card. Three reports will settle three decisions, so bring three specific keywords rather than browsing. KeySearch has no free plan at all: it runs a 7-day trial plus free standalone tools such as the keyword difficulty checker, which scores a term without an account, so plan the trial week around the terms you most need validated.

Screaming Frog SEO Spider crawls up to 500 URLs with most checks enabled at no cost — saved crawls, JavaScript rendering, custom extraction, scheduling and API access sit behind the £199/$279 annual license. Five hundred URLs covers most small sites in a single pass, and it is the only free tier here that reads your own pages instead of a query database.

Bing Webmaster Tools is free with no tier above it — there is no paid version to outgrow, and it reports the queries Bing already sends you along with volume and difficulty estimates for new ones. It’s a small share of most sites’ traffic, which is exactly what makes it a cheap second opinion when Google’s numbers and a paid tool’s numbers disagree.

The free tiers stop in the same three places — no difficulty score, no competitor keywords, no bulk export.

Which tools check, score and rank the keywords you already have?

Search volume, keyword difficulty, search intent and position tracking are four separate checks, and no single free tool runs all four.

“Search volume” is the estimated monthly count of searches for a term, and it is the number every other decision hangs on. Google Keyword Planner supplies it free as ranges, Semrush’s Keyword Magic Tool and Ahrefs’ Keywords Explorer supply it as exact figures with a trend line, and KeySearch supplies it with a color-coded difficulty score beside it. Volume tells you the size of a topic; it never tells you whether you can win it.

“Keyword difficulty” is a 0 to 100 score estimating how hard the top results are to displace, and it is built from backlink and authority signals rather than from your own site’s strength. KeySearch color-codes the score so winnable terms stand out at a glance and its competition tab breaks the same idea down page by page, KWFinder makes difficulty the sort order with a results-page panel beside it, and Ahrefs reports its own difficulty alongside traffic potential so a hard term with a large second-order audience still surfaces. Because the score describes the top ten pages and not you, the honest use is comparative: sort a list by it, take the lowest-difficulty quarter, and check those terms against your own domain’s authority before committing. It predicts how hard today’s top pages are to displace — not how fast that page will change, and not whether your site has the standing to do it.

“Search intent” is the job the searcher is trying to finish, and it decides whether a ranking is worth having. SE Ranking labels intent per keyword and already groups terms by it, and Semrush carries an intent column inside Keyword Magic Tool, so you can filter to commercial terms and drop the informational ones in one click. The four labels cover almost everything you’ll meet: informational searchers want an explanation, navigational searchers want one specific brand or page, commercial searchers are comparing before they buy, and transactional searchers are ready to act. Get the label wrong and a page can rank at position 3 while earning nothing.

That mismatch is measurable rather than theoretical. Send an informational query to a product page and the click still happens — the visitor reads nothing that answers the question and leaves in a few seconds, which is exactly the pattern Google Analytics 4 reports as a low engagement rate and a short average engagement time. A page with solid positions and weak engagement is usually an intent problem, not a writing problem.

Read it as a range even when a tool prints one figure. Every provider models volume from clickstream, panel and query data, and two tools will disagree by 30% to 50% on the same term without either being broken. What the number is genuinely good for is ordering — a term searched 12,000 times a month and one searched 400 times a month are different projects, and no amount of debating decimals changes that. Check the trend line too, because a term that peaks every December needs a page published in October, not in January.

“Keyword clustering” is the check that stops two of your own pages competing for one job. Two terms belong in the same cluster when a single page can satisfy both, and the test is whether the top ten results for the two queries overlap heavily — not whether the words look alike. SE Ranking’s keyword grouping and Ahrefs’ parent topic, inside Keywords Explorer, automate that merge by reading the results pages, and Ahrefs then reports traffic potential for the whole cluster instead of per term. Done by hand, the same job takes an afternoon for a hundred terms.

Then look at the page you’re trying to appear on. “SERP features” are the blocks above and between the ten blue links — featured snippets, People Also Ask, image packs, video carousels, local packs, shopping units and AI-generated answers — and they decide what a position is actually worth. A keyword sitting at position 1 with a snippet above it, a People Also Ask block and a video carousel can send a fraction of the clicks that a plain position 1 would, which is why the same ranking is worth wildly different amounts on two different terms.

Ahrefs, Semrush and SE Ranking put volume, difficulty and intent on one screen per term, alongside the trend and the pages currently ranking.

Position tracking is the check that runs continuously. Nightwatch reports daily positions globally and on a local grid, SE Ranking’s Rank Tracker runs inside its research subscription, and KeySearch includes tracking at its entry price. Google Analytics 4 and Looker Studio then show whether the traffic those positions earned actually engaged, which is the only outside confirmation that a ranking is doing a job.

A keyword checker reports a number, and the decision still belongs to the operator. Read the numbers, then make the call yourself. Small SEO Tools keyword utilities and the free standalone tools the suites publish cover the one-off job — keyword density, difficulty or volume on a single term — without a subscription, so reach for a checker report before you buy anything for a question you only need answered once.

Which tools generate keyword lists and suggestions?

A keyword generator turns one seed into a candidate list, and validation is a separate step that needs volume and difficulty data the generator itself doesn’t carry.

A “keyword generator”, a “keyword ideas tool” and a “keyword suggestion tool” all describe the same job — you give them one phrase and they hand back more phrases — and the differences between them are about where the suggestions come from. A generator expands your seed through what real searchers type, so its output is current and human but thin on metrics. An ideas tool expands it through a database of queries the vendor has collected, so its suggestions arrive with volume, difficulty and intent already attached. A suggestion tool usually sits inside a bigger platform and feeds the candidates straight into a filter you can sort, which matters once a list runs past a few hundred rows. A keyword search tool sits one step earlier: you type a phrase and it returns the terms already competing for it, which is the quickest way to see whether a seed is crowded before you build a list from it.

Whichever name a vendor uses, the shape of the output is the same: a list that is longer than the one you started with and no more decided than it was. The naming difference tells you where to look for the export button, not which tool wins.

A “keyword generator” is any tool that expands a seed term into related queries. Google Autocomplete expands it through what people actually type, which is why working the alphabet in an incognito window returns 60 to 100 distinct phrases from one seed, including long-tail queries that volume databases report as zero. Keyword Planner’s Discover new keywords runs the same expansion with volume ranges attached, grouped by theme, so the same seed comes back organized rather than as a flat list.

SE Ranking’s Keyword Generator is the most structured of the paid versions: it returns four classified groups — similar, related, question-based and low-search-volume — each with volume, difficulty and intent attached, so the raw dump arrives pre-sorted and the low-search-volume group is worth reading rather than dismissing. Those terms rarely have competition, and a handful of them can carry a whole page. Semrush’s Keyword Magic Tool does the same at larger scale, filtering thousands of variants by volume, difficulty and intent in one table, and its question filters carve the list down to the phrasing people actually type.

Size is the reason to reach for the database tools rather than the free ones. A single seed in Keyword Magic Tool can return thousands of variants, and the table’s filters are what make that workable — narrow to the questions, set a volume floor, cap difficulty, then read the top fifty. Pull the same set from Autocomplete by hand and you’re transcribing suggestions for an hour, which is fine for one topic and unworkable for a site with twenty.

KWFinder generates long-tail suggestions sorted by difficulty rather than volume, the more useful default for a site that can’t compete on head terms. Its results-page panel sits beside the list, so you can see the authority of the pages holding the top spots before you commit to a term.

AnswerThePublic and AlsoAsked generate question phrasing instead of keyword lists — the first as a wheel of questions, prepositions and comparisons across Google, YouTube, TikTok, Amazon and Bing, the second as a branching People Also Ask tree you can expand branch by branch. Neither attaches volume, so both produce headings rather than priorities, and both are best used to write the subheadings of a page you have already decided to build.

Keywords Everywhere sits at the end of the generation chain: install the extension, read the related-keywords sidebar on a results page, and the metrics are there for terms you’d never have typed into a research tool. It also accepts a bulk upload, which is the practical way to price a list you collected by hand — paste the candidates in, get volume and CPC back for the whole set in one pass instead of a hundred lookups.

A generator produces candidates; nothing about the count tells you which one deserves the next six weeks. Validation is a separate step, and it needs volume and difficulty data that most generators don’t carry. Only volume, difficulty and intent turn a candidate into a decision.

How do you actually research keywords for SEO?

To research keywords for SEO, move through five steps in order: pick a seed topic, expand it into candidates, validate volume and difficulty, check intent against the pages already ranking, then group the survivors into clusters, one per page.

Pick one seed topic your business genuinely serves, described in the words a customer would use rather than your industry’s internal vocabulary.
Expand the seed with a suggestion source — Google Autocomplete, Keyword Planner’s Discover new keywords, or SE Ranking’s classified suggestion groups — and save every candidate without filtering yet.
Validate each candidate on monthly search volume and keyword difficulty, and delete the terms that are too small to matter or too hard for your site’s current authority.
Check search intent by reading the pages already ranking: definition pages for informational terms, service or product pages for commercial ones, and comparison pages for terms containing “vs” or “best”.
Group the survivors into clusters, one cluster per page, where every keyword in a cluster shares the same intent and the same page can satisfy all of them.

Step 4 is where most lists fall apart. A results page full of blog posts means Google reads the query as informational, and a product page targeting it rarely ranks. A page of service results means the opposite. Read the labels off the page rather than guessing at them: how-to guides, definitions and list posts signal an informational query, category, pricing and product pages signal a commercial one, comparison pages signal that the searcher is still choosing, and a single brand domain at the top signals a navigational query you shouldn’t chase at all. If the top ten is split evenly between two formats, the query is doing two jobs and usually deserves two pages.

Step 3 is the one people skip and regret. Set your own bar before you validate anything, because “too small to matter” and “too hard for my site” mean different numbers for a new domain than for an established one. A practical filter for a young site is a volume floor in the low hundreds and a difficulty ceiling where the top results are pages of similar size and authority to yours, rather than established brands with hundreds of referring domains. Sort the validated list by difficulty, not by volume — the highest-volume term you can’t rank for is worth less than the modest term you can.

Step 5 is what stops two of your own pages competing for the same term, and Search Console exposes it without any extra tooling. Open the Performance report, filter by a single query, then switch the table to Pages: if two of your URLs both collect impressions for that one query, they are splitting the same demand and dragging each other down. The fix is a merge or a canonical tag rather than another article.

A difficulty score predicts how hard the top results are to displace today, not whether your site has the authority to do it. Treat it as one input among three, alongside intent and your own domain strength, and re-check it in six months — a score built from today’s top ten goes stale as soon as those pages change or lose links.

“Relevant keywords” means terms whose searcher wants what you sell or explain, and the test is simple: if you swapped your page for the current top result, would that visitor be satisfied? A high-volume term that brings visitors who will never buy is a cost, not an opportunity — it spends your crawl budget, your writing time and your internal links on traffic that leaves without acting.

Which keyword tools live inside Google, Chrome or a download?

Google Keyword Planner, Google Search Console, Google Autocomplete and Google Trends all run inside the browser with no install, and the only access cost is the account or the tab you already have open.

Keyword Planner lives inside Google Ads behind the Tools menu, and the setup cost is a Google Ads account — free to create, and it never requires a live campaign. Skip the campaign-creation wizard with the “Switch to Expert Mode” link and the whole thing takes about two minutes, with the planning tools usable the same day. Google Search Console is a browser property you verify once by DNS record, HTML file upload or analytics tag, and data starts arriving within a day or two of verification. Autocomplete and Trends need no account at all, which is why they’re the two you can use while you’re still deciding whether a topic deserves a tool at all.

Two more patterns are worth knowing before you install anything. A browser overlay only works on the pages it was built for, and only in a supported browser, so the metrics appear where you’re already reading and nowhere else. A desktop application is the opposite trade: it runs while the app is open and only on the machine it’s installed on, in exchange for unlimited use. Neither is better; they fail in different places, and knowing which one you’re buying saves the afternoon you’d spend hunting for a feature in the wrong window.

“Browser extension” describes Keywords Everywhere, which overlays volume, CPC and competition onto Google, YouTube, Bing, Amazon, eBay and Etsy results pages. The install is free; the data behind the overlay needs a credit balance, so the extension is the delivery mechanism rather than the product. It follows you between machines only if the browser profile does, and it only runs in the browsers the vendor supports.

“Desktop application” describes Screaming Frog SEO Spider, which runs on your own machine rather than a server — which is why a single £199/$279 annual license covers unlimited crawls instead of metering them. It’s the one tool here that stops working the moment your laptop does, and the one whose speed depends on your own hardware and connection rather than on someone else’s queue.

Everything else on this list is a web app you log into. Suite platforms such as Semrush, Ahrefs, SE Ranking and Nightwatch cost you setup time rather than disk space: the first week goes on working out which three reports matter, and the tabs you ignore are the ones you’re still paying for. Looker Studio and Google Analytics 4 connect to properties you already own, so their setup cost is the verification and tagging step, and neither returns anything useful until that’s finished. Webflow, AirOps, Gumloop, Claude and Clearscope are browser-first, each with an authorisation step before an integration works — point AirOps at a CMS, Gumloop at a data source, Webflow at a domain — and Nightwatch feeds Looker Studio, so position data reaches a client dashboard without an export.

Which keyword tool fits YouTube, Instagram or a specific audience?

YouTube and Instagram keyword research runs on different ranking signals and different suggestion sources, and Google search volume is close to useless for either surface.

What changes is the metric set, not the tool list. YouTube ranks on watch time, click-through rate and session behavior rather than backlinks and word count, so a keyword’s Google volume tells you nothing about whether a video on it will get watched. A term with 2,000 monthly Google searches that no one finishes watching is worse than one with 300 searches and a loyal audience. Instagram has no keyword ranking in the classic sense: discovery runs through hashtags, captions, alt text and the platform’s own interest model, so the closest thing to a keyword is the phrase people use in captions and searches inside the app.

KeySearch carries a YouTube Keyword Research tab that returns video-specific terms with volume, which makes it the cheapest way to see a video query’s demand without leaving a keyword tool. AnswerThePublic switches its source between Google, YouTube, TikTok, Amazon and Bing, so the same seed returns the phrasing each surface actually uses — and the TikTok set is close to Instagram-flavored phrasing research, which is the nearest approximation you’ll get for Reels. Nightwatch tracks positions across Google, Bing and YouTube, so a video’s ranking is followed in the same report as a page’s, which matters when a client asks why the video and the article disagree.

The larger suites hold YouTube data inside their research modules, so you rarely need a dedicated video tool to check demand. Keywords Everywhere overlays metrics on YouTube results pages directly, which turns the video results page itself into a research view. Either way, you still need volume, competition and intent for a video term — the numbers just come from the platform rather than from Google.

For Instagram Reels and YouTube, treat the platform’s own search suggestions like Google Autocomplete: type the seed into the app’s search bar and read what it completes to, then repeat with each letter of the alphabet if the topic is central to your content. A channel with 5,000 subscribers and 30 percent average view duration beats one with 50,000 and 8 percent, because the recommendation system reads watch time rather than reach.

Then check views and engagement on the top results, not monthly searches. On YouTube, sort by upload date rather than relevance to see what’s working right now; on Instagram, the useful signals are saves and shares rather than likes, since saves are what push a Reel into new feeds. The rule holds across both surfaces: a term is worth targeting when the top results are recent and mediocre, not when the search count is large.

The same logic stretches to any audience you can name. A B2B software buyer searches in problem language rather than product language, so the phrasing work matters more than the volume work, and the terms are usually long enough that difficulty stops being the deciding number. A local audience adds location to every query, which means the winnable set looks different in each town and a single city-level keyword rarely covers the ground — local packs take over before organic results do, so the helpful metric shifts from volume to proximity. A non-English audience often has thinner competition on the same topic, and a translated keyword list will show terms with real demand and almost no difficulty score because nobody has published for them yet.

That’s why a smaller tool that reads the right surface beats a bigger one that reads the wrong one. Pull the language your audience actually uses, whether that’s from a video tab, an app search bar or the comments under a competitor’s post, and let every other number serve as a tie-break rather than the decision.

When is a paid keyword tool worth the money?

A paid keyword tool earns its fee at the point where you need competitor keyword data, difficulty scoring at scale or bulk export, and no free tier supplies any of the three.

“Paid keyword tool” means a subscription that adds data a free tier won’t give you: the exact queries a competitor ranks for, difficulty scores precise enough to sort a shortlist by, historical trend data, and exports large enough to work in a spreadsheet.

The price ladder starts low and climbs steeply. The cheapest real keyword tool here is KeySearch at $24 per month for 200 searches a day with volume, color-coded difficulty and rank tracking. Mangools, which carries KWFinder, runs $37.70 per month billed annually for 100 lookups every 24 hours. Gumloop starts at $37 a month for automation, after a free tier of 5,000 credits, and Keywords Everywhere’s entry credit pack is $84 a year for 100,000 credits. Surfer’s content scoring begins at $99 per month, SE Ranking’s Core plan from $103.20, Ahrefs’ Lite tier from $129, Semrush’s Pro from $139.95 and Clearscope’s Essentials from $189, with Nightwatch’s $39 tracking tier at the cheap end for 250 keywords. AirOps works the other way round: free up to 1,000 tasks a month, then a quote, so its cost depends on how much you automate rather than on a shelf price.

The ladder runs roughly parallel to how much of the competitor picture each plan opens up, and past about $130 a month you’re also paying for the modules bundled next to keyword research — audits, backlink indexes, content editors — whether or not you’ll open them. Two ways to keep the bill honest: buy the focused tool for the single job that’s blocking you, and check whether the feature you want is metered. A lookups-per-day cap, a credit balance and a monthly task limit all behave differently when you’re sorting a 5,000-row list, and the cheap-looking plan is often the one that runs dry on the day you need it.

What a paid plan buys that no free tier supplies is the competitor half of the picture. Keyword Planner gives you Google’s own volume, never the queries a competitor ranks for, and Search Console gives you your own click data, never theirs. The moment the question changes from “is this term worth writing for?” to “what should I write that they already win?”, you’ve left free territory, and Ahrefs’ Keyword Gap, Semrush’s Domain Overview and SE Ranking’s competitor keyword lists are the cheapest routes back in.

A paid keyword analyzer earns its place the same way, because sorting a shortlist by difficulty and intent is a batch job rather than a lookup. If you’re weighing a tool alternative for a subscription you already pay for, compare the two on the one capability you actually use: Semrush Keyword Magic Tool and Ahrefs Keywords Explorer are the common replacements for each other, KWFinder replaces either one if a single long-tail lookup is all you need, and SE Ranking replaces both for a fraction of the entry price. Google Ads keyword data through Keyword Planner covers volume and cost-per-click but not the SEO-side difficulty the alternative decision usually turns on.

The other two things a free tier never carries are time and bulk. Historical trend data matters because a term flat at 2,000 searches a month for three years is a different page from one that’s doubled in six months, and free tools show you today. Bulk export matters because the sorting happens in a spreadsheet, and a free tier that caps you at a handful of rows a day can’t fill one. Difficulty scoring has the same shape: one score on one term is a curiosity, and a column of scores on a shortlist of 200 is a plan.

Paying is premature when the site has no traffic to study yet. Competitor reports return pages you can’t act on, a $139.95 monthly subscription produces a dashboard nobody opens, and a difficulty score means nothing on a domain with no authority to spend. Stay free until a specific question blocks you — usually “how hard is this keyword” or “what does that competitor rank for” — then buy the tool that answers it. The trigger is a blocked decision, never a feature list.

The “alternative to” question has a boring answer: name the cheaper tool that does the same job. If you’re paying Ahrefs or Semrush prices for keyword research alone, KeySearch at $24 covers volume, difficulty, competitor checks and rank tracking. If you’re paying Clearscope prices for content scoring, Surfer’s missing-terms list does most of that work for $99. If the only feature you use in a suite is position tracking, Nightwatch at $39 for 250 keywords does that job alone. Name the cheaper tool and the comparison answers itself.

Which keyword tools suit bloggers and small publishers?

A one-person blog needs four things and no more: Google’s free layer for discovery and first-party data, one low-cost keyword tool for volume and difficulty, one question tool for headings, and a rank tracker only once there’s traffic worth tracking.

The free layer comes first and stays. Google Keyword Planner supplies volume and cost-per-click at no cost, and Google Search Console shows which terms already earn impressions — on a blog with any history, the cheapest content plan available. Google Autocomplete adds long-tail phrasing for nothing and takes 20 minutes per seed topic.

The one paid tool that matters most is the keyword tool, and KeySearch at $24 per month is the honest answer for a blog budget: 200 keyword searches a day, color-coded difficulty, a competition tab showing whether the top ten pages are beatable, and 80 tracked keywords included. Mangools at $37.70 a month is the step up if you want difficulty as the primary sort order, and SE Ranking’s free Keyword Tool at 3 reports a day tells you whether the workflow suits you.

For headings, AlsoAsked at $12 per month or AnswerThePublic’s free 3 searches a day turns People Also Ask into a section structure. That’s the whole stack: free Google layer, one keyword tool, one question tool.

What a blogger doesn’t need to buy is the expensive half of the stack. An all-in-one suite at $103.20 or more per month is built for people managing several sites and reporting to clients; on a single blog, most of it stays unopened. Content scoring at $99 to $189 a month is premature until you have drafts worth optimizing, and a rank tracker is premature until rankings exist — Search Console’s average position column answers that for free.

Affiliate sites live on long-tail commercial terms, so difficulty-first selection and a question tool matter more than any suite.

Which SEO apps and all-round programs cover keyword research?

“Best SEO tool” and “best keyword research tool” are different purchases: the broad platforms carry keyword research as one module among many, while the focused tools do one job better and cheaper.

“SEO platform” and “SEO suite” describe the same thing — an all-in-one subscription bundling keyword research, competitor analysis, rank tracking, site auditing and backlink data behind one login. Semrush, Ahrefs and SE Ranking are the three platforms here, each carrying keyword research as one module rather than as the product. The bundling is the whole argument: one login, one invoice, and research, competitor data and tracking numbers that agree because they come from the same source.

The focused tools make the opposite trade. KeySearch does keyword research, competitor checks and rank tracking for $24 a month and nothing else, with no site audit and no content editor. KWFinder does difficulty-first selection inside the Mangools bundle. AnswerThePublic and AlsoAsked do question phrasing and stop there. Screaming Frog crawls a site and has no keyword data at all.

Managing several client sites and reporting on all of them? The platform wins, because three tools that disagree about the same keyword cost more time than the subscription saves. Running one site with a single bottleneck? The focused tool wins: $24 for the thing you need instead of $139.95 for that plus four modules you’ll never open.

The trap in the broad-platform route is buying the suite before the site can use it. Rank tracking with no rankings, competitor analysis with no traffic and a site audit on a five-page site all return an empty dashboard. Buy the module you’re stuck on at the cheapest price that answers it, and upgrade only when a second job appears.

Which keywords should you actually target first?

A young site starts with the lowest-difficulty keyword that matches a real buying or learning intent, and the tie-break rule is simple: lower difficulty wins first, then the closer intent match.

Given a validated list, the first page you write should be the term where the competition is weakest and the searcher clearly wants something. If the site has no authority yet, a difficulty score in the 20s on a term with real intent beats a score of 60 on a term with three times the volume, because the second page never ranks and the first one earns something this quarter.

The tie-break applies when two terms sit within a few points of each other on difficulty. Prefer the one whose intent matches your page type most closely: a commercial term that needs a service page you can write beats an informational term that needs a 3,000-word guide you’d have to research from scratch.

Once a page holds a position, the next target is the adjacent term in the same cluster, because the internal links and topical signals you’ve already built help it. Writing one page per cluster and moving from the easiest cluster outward builds authority in a subject before you attempt the head term, which is the only order that works on a new domain.

What you don’t do first is the head term. A site with 40 pages targeting the highest-volume term in its niche usually ends up with a page stuck on page four. Take the winnable term first, earn the traffic and the links, then use both to attack the term you actually wanted.

What do the best keyword tools have in common?

Every keyword tool that earns its place does the same three things: it ties a search term to demand, it reports how hard that term is to win, and it stores what it found somewhere you can act on.

“AI keyword research” covers two different things and only one of them finds keywords. The first is the classification and clustering built into the keyword tools themselves: SE Ranking sorts every suggestion into similar, related, question-based and long-tail groups with intent attached, and Semrush carries an intent column and topic clustering inside Keyword Magic Tool. Both turn a dump of 4,000 raw suggestions into a handful of groups you can assign to pages, which is the step that used to eat an afternoon of manual sorting. That’s AI finding keywords, and it’s the version worth paying for.

The second flavor is the assistant, and it’s a different job entirely. AirOps and Gumloop act on a list you already researched — they chain data sources, a model and a CMS so pages publish at volume with brand rules applied. Neither one discovers demand; they move a list you’ve validated through production faster than you could by hand.

Claude and ChatGPT hold no search volume, no difficulty data and no rankings, so anything they say about demand is a guess. What they do well is the work around the data: turning a table of terms into a content plan sentence, drafting the first pass of an outline for a validated cluster, or reading your opening paragraph back to check whether it answers the query at all. Use them for that and they earn their place; ask for volume figures and they’ll invent them confidently.

They tie a term to a number, so demand is a figure rather than a feeling. They report difficulty in some form, whether it’s a 0 to 100 score, a color code or a count of pages carrying the phrase in their titles. And they put the output where the next step happens — a saved list, an export, an API call — not in a screenshot you’ll lose.

The rest is depth. Google Keyword Planner, Google Search Console, Semrush and Ahrefs earn their positions by covering more of that chain than the tools around them, while the smaller tools earn theirs by doing one link well enough that you don’t need the rest.

Ask what the ten best SEO tools are and the answer is the first ten entries: Google Keyword Planner, Google Search Console, Surfer, SE Ranking, Ahrefs, AirOps, Clearscope, Semrush, Nightwatch and Screaming Frog SEO Spider. Five of them cost nothing, every one of them reports demand in figures rather than adjectives, and each one answers a question you can name out loud — which is the whole test worth applying to anything you’re about to pay for.

When should you stop researching and start writing?

Research ends when the candidate list holds more validated terms than your publishing calendar can absorb in the next quarter, and further research starts producing duplicates instead of new demand.

That’s the stopping rule, and it’s arithmetic rather than instinct. If you publish four pages a month, the next quarter absorbs twelve terms plus a few clusters. The moment the validated shortlist passes that number, the next twenty terms sit in a spreadsheet while the first twelve wait for a writer.

The second signal is duplication. When a fresh expansion round returns terms you already shortlisted, with the same intent and the same page planned, the topic is covered at the depth you can currently execute.

The cost of researching forever is concrete: no page ships, so nothing ranks, and the traffic that would have told you which terms were worth chasing never arrives. Six weeks of research produces a document. Six weeks of writing four pages a week produces twelve pages earning impressions you can learn from, and those impressions become better research than anything a keyword tool returns.

The first action is small: take the lowest-difficulty term from your validated list that matches a real buying or learning intent, and write that page this week — the point of keyword research was never the research.

Frequently Asked Questions

Which keyword research tools should a small site pay for, and which should it start with for free?

Start free with Google Keyword Planner, Google Search Console and AnswerThePublic, then pay for one tool that adds difficulty and competitor data — KeySearch at $24 per month is the cheapest that does all three jobs, with Ahrefs and Semrush the paid suites worth their price once several sites are involved.

What is the actual step-by-step process for finding keywords that rank?

Pick a seed topic, expand it with a suggestion source, validate volume and difficulty, check search intent against the pages already ranking, then group the survivors into clusters mapped one per page — five steps, in that order, with the intent check last before you commit to writing.

Which ten tools top this list, in order?

Google Keyword Planner, Google Search Console, Surfer, SE Ranking, Ahrefs, AirOps, Clearscope, Semrush, Nightwatch and Screaming Frog SEO Spider — the free Google tools and the keyword-discovery tools occupy the top of that order.

Can an AI assistant do keyword research on its own?

No — an AI assistant such as Claude or ChatGPT holds no search volume, difficulty or ranking data, so it cannot find keywords; the AI that does this work is the classification and clustering built into tools like Semrush and SE Ranking, which group and label suggestions automatically.

The Best Keyword Research Setup Starts Free

Finding the right keywords for SEO starts with the two Google tools that cost nothing: Keyword Planner shows what the demand looks like, and Search Console shows which terms the site already earns impressions for. Together they cover enough ground for a quarter of content work before you spend anything.

The first paid upgrade depends on the job you’re stuck on. If the list is full and little in it is validated, buy difficulty and competitor data — KeySearch at $24 a month is the cheapest complete version. If the list is validated and the drafts still underperform, buy content scoring — Surfer’s missing-terms list from $99 a month fixes drafts, not topics. Buying the second to solve the first is where budgets get wasted.

The next step is small enough to do today: open Keyword Planner, enter the one topic you already know your business should own, and validate a seed keyword against its volume and competition before buying more.

Compare all 25 keyword research tools side by side

Start with the free tiers, then upgrade only the job that is costing you time. Prices run from $0 to $189 per month, and every entry states its real downside.

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