Pro SERP Cluster
Pro SERP Cluster: A focused free tool for clustering up to 500 keywords by SERP overlap. Ranked #10 of 27 in Keyword Clustering Tools by our editors (8.2/10); pricing: Free plan; best for free SERP clustering for smaller projects.
At a glance
- Editor score8.2 / 10
- PricingFree plan
- Best forFree SERP clustering for smaller projects
- Free planYes
- Paid fromFree
- Clustering methodSerp
- Facts checked22 Sep 2026
Where it wins
- Groups keywords by overlapping Google search results
- Supports regions, languages, and adjustable overlap thresholds
- Identifies cannibalization and exports topic clusters as CSV
Where it doesn't
- Limited to 500 keywords per project
- Requires a user-provided Serper.dev API key
- Web-only and does not include AI features
Our verdict on Pro SERP Cluster
Pro SERP Cluster is a web-based keyword clustering tool for SEO professionals and content planners working on smaller projects. It groups keywords by comparing overlapping Google search-result URLs, helping users assess shared search intent, organize topic clusters, and identify potential keyword cannibalization. Keywords can be pasted directly or uploaded through CSV, with clustered results available for CSV export.
Its main strength is control over the clustering process. Users can select a region and language, then configure the SERP-overlap threshold used to determine which keywords belong together. This makes the tool useful when search results need to be assessed for a specific market or when a project requires a stricter or looser definition of shared intent. The Google search-results analysis also gives the workflow a clear connection to content planning rather than relying on a generic similarity model.
Scale and operating requirements define its fit. The published specifications set a 500-keyword limit, which suits focused content plans but may constrain larger keyword inventories. Pro SERP Cluster also requires a user-provided Serper.dev API key for SERP data, and Serper usage may incur separate costs. There is no built-in AI feature set, so the product is a focused SERP analysis utility rather than a broader AI content or SEO platform. Choose it for free, adjustable clustering with CSV workflows; consider an alternative when you need larger-scale processing, multiple integrations, or AI-assisted analysis.
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Pro SERP Cluster pricing
Pro SERP Cluster fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Clustering method | Serp |
| Keyword limit | 500 keywords |
| SERP analysis | Yes |
| Batch upload | Yes |
| Export formats | CSV |
| API access | Not verified |
| Deployment | Cloud |
| Platforms | Web |
| Support | Docs |
| Built for | Solo, Small business (editorial estimate) |
| Integrations | 1 integrations: Serper.dev |
| Pricing | Free plan |
| Website | proserpcluster.com |
| Facts checked | 22 Sep 2026 |
Pro SERP Cluster integrations
Pro SERP Cluster lists 1 integrations on its own site.
- Serper.dev
Alternatives to Pro SERP Cluster
- OptiwingA browser-based SEO workspace for localized clustering, bulk analysis, and content planning.9.4
- beserp Keyword ClusteringA low-cost web tool for turning keyword exports into prioritized content plans.9.3
- SEO Algorithm Keyword ClusteringA flexible clustering tool for combining automated grouping with manual control.9.1
See all Pro SERP Cluster alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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