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CrowdSec vs Fail2ban: catalog facts
CrowdSec	Fail2ban
Free The open-source software is available without a license fee. Hosting, hardware and…	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows, Linux	Linux, Self-hosted, Command line
Supports community intelligence and configurable detection scenarios.	Cuts SSH and web brute-force noise dramatically with one jail enabled Filters and actions are plain configuration files, easy to extend
Traffic blocking requires the appropriate enforcement integration.	Regex-based log parsing breaks when a service changes its log format Only reacts after failures are logged; it is not a preventive control
Downloadable app	Self-hosted
Open source	Open source
License: MIT	License: GPL-2.0
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.