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Vuls vs Nessus: catalog facts
Vuls	Nessus
Free The open-source software is available without a license fee. Hosting, hardware and…	Freemium Nessus Essentials is free for up to sixteen IP addresses. Professional is a paid…
Linux, Command line	Windows, macOS, Linux
Collects package information without a dedicated endpoint agent.	Very large and rapidly updated plugin library Configuration and compliance auditing alongside vulnerability scanning
Requires system access and up-to-date vulnerability data.	Free Essentials edition is capped at sixteen IP addresses Closed source, with subscription pricing beyond the free tier
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	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 September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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