SEO Clusterizer
SEO Clusterizer is a web and API tool that groups semantically related search queries to help SEO specialists, content managers, and marketers plan site stru…
What SEO Clusterizer is
SEO Clusterizer is a web and API tool that groups semantically related search queries to help SEO specialists, content managers, and marketers plan site structure and content. It offers eight clustering algorithms, with methods such as semantic analysis, hierarchical grouping, multilingual stemming, rare-word weighting, and tolerance for spelling variants. SERP clustering uses overlap among ranking URLs, and its results are cached for 14 days. Content Analyzer scores pages across 20 quality factors and produces a content brief; The Force examines Google Top 10 competitor text to identify missing terms. You can import keyword exports from Serpstat, Ahrefs, SEMrush, and Google Keyword Planner, or use CSV, TSV, and TXT files. Exports include CSV, JSON, TSV, Markdown, and XLSX. Basic algorithmic clustering runs locally in the browser, while premium AI, SERP, and content analysis are processed on the server and are not used to train models. Free costs nothing, with limits of 500 keywords per run and five clusterings per day. Pro is $29 a month; Agency is $89 a month.
Good
- Eight clustering algorithms
- Content Analyzer scores 20 quality factors
- Imports common SEO-tool exports and text files
- Offers CSV, JSON, TSV, Markdown, and XLSX exports
- Basic clustering runs locally in the browser
Watch out
- Free plan allows five clusterings per day
- Free history lasts 7 days
- Pro costs $29 a month
- Agency costs $89 a month
Who it suits
It suits SEO specialists, content managers, and marketers who need to group keywords or assess topic coverage and search intent. Developers and CMS teams can use JSON exports for integrations.
Verdict
SEO Clusterizer combines keyword clustering with SERP and content analysis tools. The Free plan has a 500-keyword run limit and five daily clusterings; higher limits and bulk analysis are available on paid plans.
Plans and prices
From SEO Clusterizer's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Up to 500 keywords per run · 5 clusterings per day · 8 clustering algorithms · CSV, JSON, TSV export · 30+ languages · Cluster visualization |
| Pro | $29 a month | Up to 15,000 keywords per run · 100 clusterings per day · AI methods (20/day) · Content Analyzer (100/day) · The Force (30/day) · SERP (2,000 keywords/month) · Ahrefs (5,000 keywords/month) · API (1,000 calls/month) · 90-day history · Priority support |
| Agency | $89 a month | Up to 50,000 keywords per run · 500 clusterings per day · AI methods (100/day) · Content Analyzer (500/day) · The Force (150/day) · SERP (15,000 keywords/month) · Ahrefs (25,000 keywords/month) · API (10,000 calls/month) · Unlimited history · Priority 24/7 support |
| Enterprise | Priced on request | Custom limits · Unlimited quotas · Dedicated capacity · SLA guarantees · Dedicated manager |
The facts
Each one read from SEO Clusterizer's own pages, with the date it was checked.
What it does
- Bulk analysis
- Pro and Agency include bulk mode for XLSX or CSV URL lists, producing a single XLSX report with a separate tab for each site.checked 11 Oct 2026
- Content tools
- Content Analyzer scores pages across 20 quality factors and generates a content brief, while The Force analyzes Google Top 10 competitor text and identifies missing terms.checked 11 Oct 2026
- Credential security
- The site says credentials for external services are stored server-side in encrypted storage and are not exposed in page code or the browser.checked 11 Oct 2026
- Exports and integrations
- The site lists CSV, JSON, TSV, Markdown, and XLSX exports; JSON is described as suitable for developer and CMS integrations.checked 11 Oct 2026
- History limits
- The site states project history lasts 7 days on Free, 90 days on Pro, and is unlimited on Agency.checked 11 Oct 2026
- Input compatibility
- The FAQ says it supports exports from Serpstat, Ahrefs, SEMrush, and Google Keyword Planner, along with CSV, TSV, and TXT files.checked 11 Oct 2026
- Intended users
- The About page identifies SEO specialists, content managers, and marketers as intended users.checked 11 Oct 2026
- Methods
- The site describes eight clustering algorithms, including rare-word weighting, semantic analysis, hierarchical clustering, multilingual stemming, and spelling-variant tolerance.checked 11 Oct 2026
- Privacy
- The site says basic algorithmic clustering runs locally in the browser and keyword lists are not uploaded; it says premium AI, SERP, and content-analysis requests are processed on its server and are not used to train models.checked 11 Oct 2026
- Purpose
- The product automatically groups semantically similar search queries into clusters to help plan site structure and content strategy.checked 11 Oct 2026
- SERP clustering
- Its SERP feature groups keywords using overlap among ranking URLs, with results cached for 14 days.checked 11 Oct 2026
The company
- Company identity
- The About page describes SEO Clusterizer as a tool created by SEO specialists for SEO specialists and lists [email protected] as its contact.checked 11 Oct 2026
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