Side by side
Keyword Clustering vs Pro SERP Cluster
Both stand on keyword clustering tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Web
Keyword Clustering combines keyword grouping, cluster metrics, and page suggestions in a free web tool. Check the daily limit tied to your Keywords Everywhere plan and note that changing a cluster requires a new job.
Visit Keyword Clustering Free plan Web
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.
Visit Pro SERP ClusterThe facts
| Keyword Clustering | Pro SERP Cluster | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Web | Web |
| Lowest paid plan | Free or on request | Free or on request |
| Plans published | 1 | 1 |
| Maker | Not published | Not published |
| Website | keywordclustering.net | proserpcluster.com |
| On keyword clustering tools | #7 of 27 | #11 of 27 |
Keyword Clustering: what it does well
- Groups keywords by semantic similarity and search intent
- Adds volume and CPC data from Keywords Everywhere
- Accepts pasted keywords and three file formats
- Exports results to CSV or Excel
- Free plan supports up to 10,000 keywords per job
What to know first
- Requires a Keywords Everywhere API key to log in
- Generated clusters cannot be edited
- Daily limit depends on Keywords Everywhere plan
Pro SERP Cluster: what it does well
- 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.
Alternatives to Keyword Clustering Alternatives to Pro SERP Cluster The whole list