Skip to content
@crowdsecurity

crowdsec

README.md

CrowdSec

CrowdSec Website • Linkedin Badge Reddit Badge YouTube Badge • CrowdSec Console

Join the CrowdSec Community on Discord

Contribute to CrowdSec open source projects

🌟 Give a Gitstar 🌟

Github Badge

<TL;DR>

CrowdSec is a free, modern, and collaborative behavior detection engine coupled with a global IP reputation network. It stacks on fail2ban's philosophy but is IPV6 compatible and 60x faster (Go vs. Python) and uses Grok patterns to parse logs. CrowdSec is engineered for modern Cloud / Containers / VM-based infrastructures (by decoupling detection and remediation). Once detected, you can remedy threats with various methods (firewall block, Nginx HTTP 403, Captchas, …) while sharing the aggressive IP to CrowdSec Network and improving everyone's security further.

OSS Projects

  • CrowdSec - The open-source and participative IPS able to analyze visitor behavior & provide an adapted response to all kinds of attacks. It also leverages the crowd power to generate a global CTI database to protect the user network.
  • CrowdSec Hub: Host scenarios and parsers for CrowdSec Agent
  • Home Assistant CrowdSec Addons: CrowdSec for home-assistant.io
  • Firewall Bouncer: Crowdsec bouncer written in golang for firewalls

Pinned Loading

  1. crowdsec crowdsec Public

    Open-source IDS/IPS, WAF and bot detection for Linux, Windows, Docker and Kubernetes, with a crowdsourced blocklist of malicious IPs.

    Go 15k 719

  2. hub hub Public

    Main repository for crowdsec scenarios/parsers

    Python 256 236

  3. cs-firewall-bouncer cs-firewall-bouncer Public

    Crowdsec bouncer written in golang for firewalls

    Go 196 61

Repositories

Showing 10 of 131 repositories
  • sec-lists Public

    Repository to track keywords & patterns lists used by crowdsec parsers and scenarios

    crowdsecurity/sec-lists's past year of commit activity
    18 MIT 23 0 65 Updated Sep 25, 2026
  • hub Public

    Main repository for crowdsec scenarios/parsers

    crowdsecurity/hub's past year of commit activity
    Python 256 MIT 236 119 (7 issues need help) 83 Updated Sep 25, 2026
  • crowdsec-skill Public

    Official CrowdSec skill for Claude Code & Codex: install, configure, operate and debug the engine, bouncers and WAF/AppSec.

    crowdsecurity/crowdsec-skill's past year of commit activity
    Shell 24 MIT 2 4 2 Updated Sep 25, 2026
  • crowdsec Public

    Open-source IDS/IPS, WAF and bot detection for Linux, Windows, Docker and Kubernetes, with a crowdsourced blocklist of malicious IPs.

    crowdsecurity/crowdsec's past year of commit activity
    Go 14,966 MIT 719 226 (1 issue needs help) 72 Updated Sep 25, 2026
  • hub-dev Public Forked from crowdsecurity/hub

    Hub Dev

    crowdsecurity/hub-dev's past year of commit activity
    Python 0 MIT 240 0 6 Updated Sep 25, 2026
  • crowdsec-docs Public

    CrowdSec Documentation: Comprehensive guides, tutorials, and references for installing, configuring, and using CrowdSec, an open-source cybersecurity platform. Contributions welcome!

    crowdsecurity/crowdsec-docs's past year of commit activity
    MDX 52 99 41 15 Updated Sep 25, 2026
  • cs-openresty-bouncer Public

    CrowdSec bouncer for OpenResty

    crowdsecurity/cs-openresty-bouncer's past year of commit activity
    Shell 23 MIT 7 9 4 Updated Sep 24, 2026
  • cs-haproxy-spoa-bouncer Public

    HAProxy spoe filter for CrowdSec - WAF and IP protection

    crowdsecurity/cs-haproxy-spoa-bouncer's past year of commit activity
    Go 22 MIT 4 8 10 Updated Sep 24, 2026
  • crowdsec-service-api-sdk-python Public

    Service API Python SDK

    crowdsecurity/crowdsec-service-api-sdk-python's past year of commit activity
    Python 2 MIT 0 0 13 Updated Sep 24, 2026
  • cs-firewall-bouncer Public

    Crowdsec bouncer written in golang for firewalls

    crowdsecurity/cs-firewall-bouncer's past year of commit activity
    Go 196 MIT 60 35 (1 issue needs help) 17 Updated Sep 23, 2026
View all repositories

Sponsoring

  • @antonmedv

Top languages

Loading…
GitHub Sponsor