Free keyword cluster tool

Group keywords into pages — with real search numbers on every cluster.

Paste up to 1,000 keywords or type one seed. Get topical clusters sorted by opportunity, each with monthly volume, difficulty, intent, a pillar keyword and a writer-ready brief. Data from Google and AI search. No email gate, no card, CSV included.

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CSV, TXT, XLS, XLSX, DOC, DOCX - multiple files supported

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Keep your results and audit your whole site

A free account saves your work in a project and audits up to 500 pages per audit, 1,000 pages a month. No card.

Free · no card

3 of 3 free uses left today ·
Volume per keyword and per cluster Difficulty 0–100 Search intent CPC & 12-month trend Pillar, page type, title & meta Cannibalization check

5.0 on Chrome Web Store 10,000+ marketers 21,000+ free checks run

Clusters
4
from 15 keywords
Total volume
244,900
searches / month
Avg difficulty
58
medium
Intent mix
2 · 1 · 1
info · commercial · buy
Cannibalization
0
overlapping clusters
1
Best CRM software (comparisons) commercial · 4 keywords · page type: comparison / roundup
92 opportunity
Volume 49,200 Avg KD 61 CPC $38.10 Commercial
best crm software33,100 72
crm software comparison4,400 55
crm software reviews3,600 58
crm software for small business8,100 59
Brief: one roundup page, pillar on “best crm software”, sections per use case (small business, startups), comparison table, pricing row.
yoursite.com › best-crm-software
12 Best CRM Software in 2026 (Compared & Tested)
We compared pricing, features and support of the top CRM tools for small businesses and startups. See which one fits…
2
Free & cheap CRM buy · 3 keywords · page type: landing / pricing
84 opportunity
Volume 31,000 Avg KD 49 CPC $21.40 Buy
free crm software22,200 52
cheap crm software1,900 41
crm software pricing6,600 54
Brief: pricing page or free-plan landing; answer “is there a free CRM” above the fold; price table with tiers.
3
What CRM software is & how to choose informational · 4 keywords · page type: guide
71 opportunity
Volume 153,700 Avg KD 64 CPC $12.80 Informational
crm software135,000 78
what is crm software12,100 47
crm software examples2,900 29
how to choose crm software1,300 24
Brief: pillar guide; definition in 40 words, examples section, a “how to choose” checklist that links to cluster 1.
4
CRM by industry & company size commercial · 2 keywords · page type: category hub
66 opportunity
Volume 9,500 Avg KD 38 CPC $19.60 Commercial
crm for real estate agents6,600 41
crm for startups2,900 35
Brief: one hub page now, split into per-industry pages when each passes 1,000 searches.
Not clustered: hubspot vs salesforce (Brand, 14,800/mo) · cloud based crm software → merged into cluster 1 (same searchers) Copy ↓ CSV ↓ JSON

What one free run returns. Numbers are illustrative — run your list for live data.

1,000 keywords per free run, every one with volume, difficulty and intent
6 metrics on every keyword, 5 roll-ups on every cluster
5B+ keywords from Google and AI search behind seed mode
~30 s from paste to a content map, no signup
Built around the decisions you make

A cluster is only useful if it tells you what to build and in what order.

Which clusters deserve a page?

Rank clusters by opportunity, not by size

Every cluster carries its total monthly volume and average difficulty read from the pages already ranking. The opportunity score puts demand against difficulty, so a 9,000-search cluster at KD 38 sits above a 150,000-search cluster at KD 78 — because the first one you can win this quarter.

sort opportunity ↓ → filter KD < 50 → build the top five

“The larger the site, the more work there is to control the quality of content. This tool will help you put your pages in order, analyze weak pages and fix errors.”

Nikolay Shmichkov CEO at SEOquick, a seotools.pro partner agency
ClusterVolAvg KDIntentScore
Best CRM software (comparisons)49,200 61 Commercial 92
Free & cheap CRM31,000 49 Buy 84
What CRM software is & how to choose153,700 64 Info 71
CRM by industry & size9,500 38 Commercial 66
Which keyword leads the page?

Pillar and supporting terms, chosen with data

Inside each cluster the highest-volume keyword becomes the pillar — the H1 and the URL. The rest become H2s, FAQ entries and variants in the copy. You see the split before you write, instead of guessing which phrase deserves the title.

pillar → H1 + slug · supporting → H2s + FAQ · variants → body copy

“It lets me centralize my whole SEO content workflow: quickly spot what needs optimizing, update meta tags right inside the tool, and share everything with clients in seconds.”

Kate Starr Founder at Content Backstage
KeywordRoleVolKDTrend
crm software Pillar · H1 135,000 78
what is crm softwareH212,100 47
crm software examplesH22,900 29
how to choose crm softwareFAQ1,300 24
Am I about to compete with myself?

Catch cannibalization before you publish two pages

When two clusters share intent and most of their meaning, the cannibalization check flags them and proposes a merge. “Cloud based crm software” does not need its own page when the same people land on your best-CRM roundup. One strong page beats two thin ones that split your rankings.

flag overlap → merge clusters → redirect the weaker URL

“A real gem in the crown of SEO tools. It caught a critical typo in a PR story our client had just published. It could have cost them a lot.”

Alexandra Tachalova Founder at Digital Olympus
Cluster ACluster BOverlapSuggestion
Best CRM softwareCloud CRM tools82% Merge into A
Free & cheap CRMBest CRM software31% Keep separate
CRM by industryBest CRM software18% Keep separate
What do I hand the writer?

A brief per cluster: page type, title, meta, outline

Each cluster ends with the page type that matches its intent (guide, comparison, landing, category hub, FAQ), a draft title and meta description shown as a Google result, a URL slug and the sections to cover. Export it, or open the cluster in the Content Optimizer and start writing against the top 10.

export CSV → one row per keyword with cluster, pillar, page type, title

“A fantastic tool that identifies errors and oversights in your on-page SEO and suggests fixes. Impactful improvements from the very first day.”

Alex Genadinik CEO & CMO at Problemio
Page typePricing / free-plan landing
Pillarfree crm software · 22,200/mo
TitleFree CRM Software: Plans, Limits & What “Free” Really Includes
MetaCompare free CRM plans, their user and contact limits, and when a $15 cheap CRM is the better deal.
Slug/free-crm-software
SectionsIs there a free CRM? · Plan table · Cheap paid CRMs under $20 · Pricing FAQ
Open in Content Optimizer → ↓ Export brief
How it works

From a keyword dump to a content map in about thirty seconds.

  1. Paste, upload or type a seed

    A list from any tool, a spreadsheet column, or one topic. Duplicates and empty lines are removed; in seed mode the tool pulls up to 200 real keyword ideas for the country you pick.

  2. Metrics first, then clusters

    Every keyword gets its monthly volume, CPC, competition, 12-month trend, difficulty and intent. Clustering then groups by meaning and intent and anchors each cluster on the strongest keyword.

  3. Review, merge, export

    Cards, a sortable table or a bubble map. Filter by intent or difficulty, merge what the cannibalization check flags, then export CSV or JSON — no account needed.

Read a cluster like an SEO

What each number means — and what to do with it.

Cluster volume

sum of searches / month

The demand one page can address if it ranks for the whole cluster. Seasonal clusters swing far above and below it — check the trend.

Use it to size the page before you invest.

Average difficulty

0–100 · from the ranking pages

Under 30 is realistic for new sites; over 60 usually needs authority and links. Each keyword's own difficulty is shown in the cluster.

Use it to pick clusters you can win this quarter.

Opportunity score

0–100 · volume vs difficulty

Demand divided by the effort to rank, scaled across your list. High score = big audience, beatable competition.

Use it to order the content calendar.

Intent

Info · Commercial · Buy · Brand

Classified from what already ranks. A cluster with mixed intent is flagged — it probably needs two pages.

Use it to choose guide, comparison or product page.

Pillar keyword

highest volume in the cluster

The phrase that leads the page: H1, title and URL. Supporting keywords become subheadings and FAQ.

Use it to write the title first, then the outline.

CPC & trend

USD per click · 12 months

High CPC means advertisers pay for these searchers — commercial value even for organic. The trend shows when to publish.

Use it to prioritise money clusters and time seasonal ones.

All metrics come from live search data for the country you choose. When no data exists for a term we show “—” rather than inventing a number.

Three ways tools cluster keywords

Why “contains the same word” is not clustering.

Most free tools group by shared words. Here is how the methods differ, and which one this tool uses.

Older free tools

Word-match (lemma) grouping

Puts “best running shoes” and “best running app” together because they share “best running”. Fast, free, and wrong often enough that you re-sort by hand.

This tool

Meaning + intent clustering

Reads what each phrase means and what the searcher wants, then groups terms that one page can satisfy. Anchored on real volume so the pillar is the keyword worth the title, not the longest string.

Paid suites

SERP-overlap clustering

Groups keywords whose top-10 results share the same URLs — the strictest signal that Google treats them as one topic. Needs a live search per keyword, which is why suites charge for it.

Who it's for

Built for the moment between research and writing.

Content strategists

Turn a 1,000-row export into a topic map with volumes, ordered by opportunity, in one run.

Agencies and freelancers

Cluster a client's list, export the CSV with page types and titles, and present a content plan with numbers behind it.

Bloggers

Type one seed, get the clusters, and see which post to write first because the difficulty says you can rank.

E-commerce and SaaS

Separate buy, compare and learn clusters so category pages, comparisons and guides each get their own URL.

Honestly compared

Free cluster tools give you groups. Almost none give you numbers.

What you get without paying, checked on the tools' own pages on 9 November 2026 — including what we don't do yet.

Free, no accountWord-match toolsAI-only cluster toolsseotools.pro
Groups by meaning and intent—✓✓
Monthly volume on every keyword——✓
Difficulty and intent per keyword—AI guess✓
Cluster totals, pillar and opportunity score——✓
Page type, title and meta per cluster—some✓
Start from one seed with real ideas—AI ideas✓
Cannibalization check——✓
Keywords per free run1,000100–5001,000
No signup, no API key✓email after 1st run✓
SERP-overlap clustering——— (paid, planned)

Word-match tools: phrase-grouping tools such as KeySearch's. AI-only: RyRob, SEO.ai, fatjoe and similar. Tools that attach volume for free (keywordclustering.net) require your own keyword-data API key; NLP tools such as Zenbrief sell volume and difficulty on paid plans.

From the people using seotools.pro

Rated by SEOs, agencies and founders.

5.0
on Chrome Web Store · 10,000+ marketers
“An incredibly convenient tool. I do many SEO audits, and what used to take hours now takes a few clicks. It fits right into my workflow.”
Emanuel P Founder at How About Some Marketing
“It quickly flags issues such as missing meta tags, broken links and alt-text problems, which saves time. For everyday checks, it definitely makes life easier.”
Ayesha Mansha Co-Founder at Brand ClickX
“It lets me centralize my whole SEO content workflow: quickly spot what needs optimizing, update meta tags right inside the tool, and share everything with clients in seconds.”
Kate Starr Founder at Content Backstage
“A fantastic tool that identifies errors and oversights in your on-page SEO and suggests fixes. Impactful improvements from the very first day.”
Alex Genadinik CEO & CMO at Problemio
“A real gem in the crown of SEO tools. It caught a critical typo in a PR story our client had just published. It could have cost them a lot.”
Alexandra Tachalova Founder at Digital Olympus
“The larger the site, the more work there is to control the quality of content. This tool will help you put your pages in order, analyze weak pages and fix errors.”
Nikolay Shmichkov CEO at SEOquick, a seotools.pro partner agency
FAQ

Keyword clustering, answered.

Is the keyword cluster tool really free?

Yes. 3 runs a day without an account, up to 1,000 keywords per run, with volume, difficulty, CPC and intent on every keyword and CSV export. A free account raises the daily cap; paid plans remove it.

Where do the volume and difficulty numbers come from?

Monthly volume, CPC, competition and the 12-month trend come from Google search data for the country you choose. Difficulty is estimated from the strength of the pages currently ranking; intent is classified from what already ranks. If a term has no data we show “—”.

How does the tool decide which keywords belong together?

By meaning and search intent, not shared words: “best crm for startups” and “top crm tools for small teams” land together, “crm software pricing” goes to a buy cluster. Each cluster is then anchored on its highest-volume keyword — the pillar.

What is the difference between keyword clustering and keyword grouping?

Same job, different generations. Grouping tools match shared words; clustering tools use meaning, intent or shared search results. This tool clusters by meaning and intent and attaches search data so you can rank clusters by opportunity.

How many keywords should a cluster have?

There is no fixed number. A tight informational cluster often has 5–15 keywords; a broad pillar can hold 30 or more. What matters is that every keyword expects the same kind of page. Use the max cluster size setting if your plan needs smaller groups.

Can I start from one seed keyword instead of a list?

Yes. Switch to seed mode, type a topic and pick a country. The tool pulls up to 200 real keyword ideas for that seed and clusters them — a topic map with numbers, without doing keyword research first.

Can I export the clusters?

Yes. CSV or JSON without an account: one row per keyword with cluster, pillar, volume, difficulty, CPC, intent and page type, or one row per cluster with its totals, title and meta description.

Does the tool check for keyword cannibalization?

Yes. After clustering, overlapping clusters are flagged with a suggested merge, so you don't publish two pages competing for the same search.

Stop sorting keywords in a spreadsheet.

Paste your list and get clusters with real numbers, a pillar and a brief — free, no signup.

Cluster my keywords free 3 free runs a day · 1,000 keywords per run · CSV export · no card