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

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