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RITA vs Security Onion: catalog facts
RITA	Security Onion
Free Free to download from its public GitHub repository.	Freemium The platform is free, while Onion AI features are offered through sales representatives.
Linux, Command line	Linux, Self-hosted
Focused on detecting beaconing and command and control traffic Includes an importer, analysis and a results viewer	Complete monitoring platform installed from a single ISO Includes packet capture, detection rules and threat hunting
Requires existing network traffic logs to analyse Command-line setup aimed at security professionals	Needs dedicated hardware or virtual machines and setup time Onion AI details are only available through sales
Downloadable app	Self-hosted, Operating system
Open source	Closed source
License not stated	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 23, 2026	Official website Full listing and sources Checked September 23, 2026

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