Compare software

SEOnautSEOmator
Free

Free and open source with no paid tier.

 Freemium

Offers more than 40 free SEO tools alongside paid platform features.

Web, Self-hosted Web, Browser extension
  • Self-hosted, so crawl data stays on your server
  • Docker Compose setup
  • Site crawling with on-page and technical issue reports
  • More than 40 free SEO tools
  • Focused on technical audits, with no keyword or backlink data
  • Requires running and maintaining your own server
  • Full platform features require a paid plan
  • Hosted service only, with no self-hosted option
Self-hosted Web application, Hosted service, Browser extension
Open source Closed source
License: MIT License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Needs internet

Checked October 2, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.