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CrowdSec vs OSSEC: catalog facts
CrowdSec	OSSEC
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free and open source; the OSSEC+ edition is also free after registration.
Windows, Linux	Self-hosted
Supports community intelligence and configurable detection scenarios.	Combines log analysis, file integrity monitoring and active response Custom rules and scripts for tailored alerting
Traffic blocking requires the appropriate enforcement integration.	Configuration takes time to learn Extra features such as machine learning need registration for OSSEC+
Downloadable app	Self-hosted
Open source	Open source
License: MIT	License not stated
Not stated if an account is needed	No account 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 23, 2026

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