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crowdsec

README.md

CrowdSec

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<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 Public

    CrowdSec - the open-source and participative security solution offering crowdsourced protection against malicious IPs and access to the most advanced real-world CTI.

    Go 9.9k 489

  2. hub Public

    Main repository for crowdsec scenarios/parsers

    Python 183 165

  3. cs-firewall-bouncer Public

    Crowdsec bouncer written in golang for firewalls

    Go 127 45

Repositories

Showing 10 of 110 repositories
  • cs-nginx-bouncer Public

    CrowdSec bouncer for Nginx

    Shell 49 MIT 10 9 0 Updated Mar 12, 2025
  • crowdsec Public

    CrowdSec - the open-source and participative security solution offering crowdsourced protection against malicious IPs and access to the most advanced real-world CTI.

    Go 9,889 MIT 489 161 (1 issue needs help) 31 Updated Mar 12, 2025
  • lua-cs-bouncer Public
    Lua 11 MIT 13 15 4 Updated Mar 12, 2025
  • hub Public

    Main repository for crowdsec scenarios/parsers

    Python 183 MIT 165 89 (2 issues need help) 45 Updated Mar 12, 2025
  • crowdsec-docs Public

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

    MDX 29 83 40 9 Updated Mar 11, 2025
  • crowdsec-service-api-sdk-python Public

    Service API Python SDK

    Python 1 MIT 0 0 1 Updated Mar 11, 2025
  • cs-haproxy-spoa-bouncer Public

    EXPERIMENTAL: HAProxy spoe filter for CrowdSec - WAF and IP protection

    Go 6 MIT 2 7 4 Updated Mar 11, 2025
  • helm-charts Public

    CrowdSec community kubernetes helm charts

    Shell 26 MIT 39 13 7 Updated Mar 11, 2025
  • cs-cloudflare-worker-bouncer Public

    A CrowdSec Bouncer that syncs the decisions made by CrowdSec with CloudFlare's firewall using cloudflare workers. Manages multi user, multi account, multi zone setup. Supports IP, Country and AS scoped decisions.

    Go 6 MIT 6 2 2 Updated Mar 10, 2025
  • nodejs-cs-bouncer Public

    The official Crowdsec Node.js Bouncer/Remediation Component

    TypeScript 1 MIT 1 0 0 Updated Mar 6, 2025
View all repositories

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