Semantic Core
Free tool · 02

Free keyword clustering tool

Paste a list of search queries — AI groups them into semantic clusters (one cluster = one page). Identifies intent for each group. 5 to 100 queries at a time, no signup.

5 to 100 queries at a time. Each up to 200 characters.

How to use the output

  1. 1Each cluster is a candidate for a separate page (article, category, landing).
  2. 2Within one page, optimize text for all queries in the cluster. Main query → H1, others → subheadings and body.
  3. 3Don't try to rank one page across different intents — it hurts CTR. If a cluster is 'mixed', consider splitting.
  4. 4Use the cluster intent to pick format: commercial → category/comparison, informational → how-to article, transactional → landing with CTA.

Limits. Between 5 and 100 phrases per run, each up to 200 characters. 10 groupings per day per device. Sign in for higher limits: 10 / 50 / 150 / 500 depending on your plan.

Got 5,000 keywords?

This free tool clusters up to 100 queries at a time. For larger keyword universes — Semantic Core handles it in the cloud, with history, cluster relationship graph, and AI-generated content briefs per cluster. From $19/mo.

See pricing

FAQ

What is keyword clustering?
It’s grouping the queries that a single page can cover. Each cluster is one future page on your site.
What method does this tool use?
Semantic, by meaning via AI — without parsing the SERP. It’s fast and free; recheck borderline commercial clusters against the top results afterwards.
Why group queries at all?
So you don’t build a separate page for every keyword. Otherwise pages compete with each other and sink — that’s called cannibalization.

Read more: Clustering methods: by SERP, by meaning and on embeddings