Last updated on November 2nd, 2026 at 06:23 pm
Keyword Clustering Tool
By Digital Mansoor · 12+ years in SEO
Paste a keyword list. Get topic clusters grouped by shared root words, ready for a content plan.
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- Groups a keyword list into clusters by shared words.
- Shows keyword count, total volume and an intent label for each cluster.
- Ignores a word found in more than 40 percent of your keywords, so “seo” does not merge everything.
- Free, no signup. It does not read search results, so check each cluster against the live SERP.
What is the Keyword Clustering Tool?
The Keyword Clustering Tool sorts a list of keywords into groups that could share one page. It matches keywords on shared word stems, sums the volume and labels the intent.
It is built for SEO consultants and bloggers who have a keyword export and need a first grouping to plan pages.
How to use the free Keyword Clustering Tool
- Paste your keywords: One per line, with volume after a comma.
- Set the minimum shared words: Use 1 for looser groups or 2 for tighter ones.
- Run the tool: Click the button.
- Read the clusters: Each shows its head keyword, volume, intent and members.
- Check the SERP: Compare the top 10 results for each head keyword before you commit to pages.
Example: input and output
Eleven SEO keywords.
Results shown are from the live tool.
How the Keyword Clustering Tool helps your SEO work
- Turn a flat list into page groups.
- See which cluster carries the most volume.
- Spot intent per cluster.
- Avoid writing near-duplicate posts.
- Plan pages from a keyword export.
Keyword Clustering Tool compared with other free tools
I compared this with the keyword grouping tool on seranking.com, read from its page on 22 October 2026.
| Check | This tool | seranking.com |
|---|---|---|
| Method | Shared words | The page does not name the method; it mentions a minimum number of matching URLs, which suggests SERP overlap (my inference) |
| Reads search results | No | Likely, but not confirmed |
| Cost | Free | Free trial; plans from about $103 a month, per the page |
| Signup | None | Account implied by the trial flow |
| Volume and intent | Uses the volume you paste; labels intent | Can fetch volume for a fee, per the page |
Where they are ahead: seranking.com groups keywords in a way that likely uses search results, which is more reliable than shared words. This tool is a free first pass.
Compared on 22 October 2026 by opening each tool and reading its page. Features can change.
What the Keyword Clustering Tool cannot do
- The tool groups by shared words. It does not read search results, so two phrases with different words can still deserve one page.
- Compare the top 10 results for each cluster head before you commit to pages.
- The tool ignores a word found in more than 40 percent of your keywords when the list has 6 or more.
- Intent labels are guesses from the words used.
- The first 500 lines are used.
Is my text or data sent anywhere?
Your keyword list is processed in your browser and is not sent to this site or any other server. The Save button keeps snapshots in your own browser storage. The share link puts your input in the part of the URL after the # sign, which browsers do not send to servers, but anyone you give the link to can read it.
Keyword Clustering Tool FAQ
What is keyword clustering?
It groups related keywords so one page can target them together.
How does this tool cluster?
By shared word stems, with a minimum number of shared words you set.
Why is “seo” ignored?
A word found in more than 40 percent of the keywords would merge everything, so the tool drops it from matching.
Does it use search results?
No. Check the live SERP for each cluster head.
What format do I paste?
One keyword per line, with volume after a comma.
Does it use AI?
No. It uses word rules in your browser.
Is the Keyword Clustering Tool free?
Yes, it is free and needs no signup.
Want this done for your site?
Send your URL on WhatsApp and I will tell you what to fix first.
Need more than a free tool? See my content strategy consulting and on-page SEO consulting work.
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