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SEOnaut vs Netpeak Spider: catalog facts
SEOnaut	Netpeak Spider
Free Free and open source with no paid tier.	Paid Commercial software with a free trial.
Web, Self-hosted	Windows, macOS
Self-hosted, so crawl data stays on your server Docker Compose setup	Dedicated crawler for technical SEO audits Runs as a desktop application
Focused on technical audits, with no keyword or backlink data Requires running and maintaining your own server	Paid after the trial Closed source
Self-hosted	Downloadable app
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	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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