Free. Not Freemium.
ScreamingCAT is open-source software. Every feature — JavaScript rendering, Google integrations, unlimited crawling, exports — is included at no cost. No license keys. No annual renewals. No feature tiers.
ScreamingCAT
$0
forever
Everything included:
- Unlimited URL crawling
- 60+ automated SEO checks
- JavaScript rendering (headless Chrome)
- Google Search Console integration
- Google Analytics 4 integration
- PageSpeed Insights integration
- Custom extraction (CSS, XPath, regex)
- CSV, Excel, and XML sitemap export
- Crawl snapshots and comparison
- Site structure visualization
- Robots.txt and sitemap parsing
- Security analysis
- Hreflang validation
- Authentication support
- Custom HTTP headers
- Project save/load (.sccat files)
- Cross-platform (Windows, macOS, Linux)
🚀 Launching April/May 2026
Like the project? Consider supporting development:
Frequently Asked Questions
Why is ScreamingCAT free?
ScreamingCAT is an open-source project built by developers who believe professional SEO tools should be accessible to everyone — not just teams with enterprise budgets.
Is there a paid version with more features?
No. There is one version, and it includes everything. We don’t gate features behind a paywall.
Are there crawl limits?
No. You can crawl as many URLs as your machine can handle. There is no 500-URL cap or license-based restriction.
How does ScreamingCAT compare to paid crawlers?
ScreamingCAT offers comparable depth of analysis to tools like Screaming Frog SEO Spider, Sitebulb, and DeepCrawl — including JavaScript rendering, Google integrations, and 60+ issue types. The main difference: it costs nothing.
Where is my data stored?
All data stays on your local machine. ScreamingCAT is a desktop application — nothing is sent to external servers (except when you explicitly use Google integrations with your own API credentials).
Can I contribute to the project?
Yes. ScreamingCAT is open-source. Contributions, bug reports, and feature requests are welcome on GitHub.
ScreamingCAT vs. Paid SEO Crawlers
| Feature | ScreamingCAT | Screaming Frog (Free) | Screaming Frog (Paid) | Sitebulb |
|---|---|---|---|---|
| Price | $0 | $0 | ~$259/year | ~$152/year |
| Crawl limit | Unlimited | 500 URLs | Unlimited | Plan-based |
| JavaScript rendering | Yes | No | Yes | Yes |
| Google Search Console | Yes | No | Yes | Yes |
| Google Analytics | Yes | No | Yes | Yes |
| PageSpeed Insights | Yes | No | Yes | Yes |
| Custom extraction | Yes | No | Yes | Yes |
| Crawl comparison | Yes | No | Yes | Yes |
| Open source | Yes | No | No | No |
| Data stays local | Yes | Yes | Yes | Depends |
Pricing as of 2026. Third-party pricing may vary.