Freedom report

Two barsScore 6.4

  • Free tierA free tier is on its own pricing page
  • Runs widely1 of 6 device platforms
  • DocumentedPlans, terms and facts published

Pro SERP Cluster is a free web tool that groups keywords by overlap in actual Google search results. It uses SERP data to identify terms that share search intent, rather than NLP or embedding approximations. This can help reveal keywords competing for the same rankings and inform content consolidation. The tool also supports blog post optimization, pillar-page creation and content-gap analysis. Its topic clusters can be used for hub-and-spoke planning, topical-authority building and site architecture. Each run supports up to 500 keywords, and users can choose a target region, language and overlap threshold to set clustering strictness. Retrieving Google SERPs requires a Serper.dev API key, which is stored locally for the session only. Results can be exported as CSV, and the free plan includes CSV import and export. The product is built for professional SEOs planning content, building topic authority or addressing cannibalization. It is available on the web.

Who it is for

Pro SERP Cluster suits professional SEOs planning content, developing topic clusters or identifying competing keywords. It is web-based and supports runs of up to 500 keywords.

What is good

  • Free plan includes CSV import and export.
  • Uses Google search result overlap for clustering.
  • Supports region, language and overlap threshold settings.
  • Exports cluster results as CSV.
  • Serper.dev API key remains local for the session.

What to know first

  • A Serper.dev API key is required to retrieve SERPs.
  • Clustering runs are limited to 500 keywords.

Verdict

Pro SERP Cluster focuses on keyword grouping from actual search-result overlap, with settings for region, language and clustering strictness. Its 500-keyword run limit and required Serper.dev key are worth noting.

Get started with Pro SERP Cluster

  1. Visit the Pro SERP Cluster website.
  2. Connect a Serper.dev API key to retrieve Google SERPs.
  3. Import a keyword list from CSV or prepare up to 500 keywords for a run.
  4. Choose the target region and language.
  5. Set the overlap threshold and run clustering.
  6. Export the results as a CSV file.

What the free plan stops at

The free plan supports up to 500 keywords per clustering run. Retrieving Google SERPs requires a Serper.dev API key.

Questions about Pro SERP Cluster

How much does Pro SERP Cluster cost?

The Free plan is listed at no cost.

What does the free plan include?

It supports up to 500 keywords per clustering run and CSV import and export.

Which platforms does it support?

The listed platform is web.

Does it require an API key?

Yes. Users connect a Serper.dev API key to retrieve Google SERPs. The key is stored locally for the session only.

Can results be exported?

Yes. Cluster results can be exported as a CSV file.

How does it group keywords?

It uses overlap among actual Google search results to identify keywords with shared search intent.

Pro SERP Cluster plans and pricing

All plans
Free Free up to 500 keywords per clustering run · CSV import/export proserpcluster.com · 30 Sept 2026

Compared on keyword clustering tools

Free plan
Yes
Clustering method
serp
Keyword limit
500 keywords
SERP analysis
Yes
Batch upload
Yes
Export formats
CSV

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