Crowdsec
CrowdSec provides open-source intrusion prevention, web application firewall, and bot detection tools.
About Crowdsec
CrowdSec is an open-source IDS/IPS, WAF and bot detection solution. It analyzes log sources and HTTP requests to detect bad behavior. Reports from participants feed a real-time Community Blocklist of malicious IPs that the Security Engine blocks proactively.
Pricing is not clearly stated.
Key features
- Installs on Linux, Windows, Docker, OpnSense and Kubernetes
- Parses logs on one machine and blocks at firewall, reverse proxy or CDN on another
- WAF built on Coraza with SecLang, OWASP Core Rule Set and YAML rules
- JavaScript proof-of-work challenge that stops scrapers while allowing verified crawlers
- Ships with brute force, port scan and web scan scenarios expandable from the Hub
Crowdsec at a glance
- Category
- Privacy & Security › Security Tools
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- Linux, Windows
- Details verified
- Oct 22, 2026 · Official source
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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