# CrowdSec

> Collaborative open source security engine for modern protection

- Canonical URL: https://www.fosshunter.com/tools/crowdsec
- JSON export: https://www.fosshunter.com/tools/crowdsec.json
- Website: https://github.com/crowdsecurity/crowdsec
- Category: Web Application Firewall
- Open source: yes
- Self-hostable: yes
- Verified listing: no
- Featured: no
- Published at: 2026-04-03T16:58:50+00:00
- Catalog revision: `1013879815`

## Repository metrics (point-in-time)

- Repository: https://github.com/crowdsecurity/crowdsec
- Stars: 15451
- Forks: 755
- Open issues: 306
- License: MIT
- Last push: 2026-11-03T14:04:31+00:00
- Metrics observed at (synced_at): 2026-11-04T11:16:21+00:00
- Archived: no

Tags: Security, WebSecurity, WAF, attacks-prevention
Tech stacks: docker, go, golang, python

## Features
- Collaborative Threat Intel - Leverages community data to block malicious IPs globally *(highlighted)*
- Behavioral Log Analysis - Identifies and stops suspicious activities via local log processing *(highlighted)*
- Modular Remediation - Uses bouncers to block threats at firewall or application levels *(highlighted)*

## Description

CrowdSec is a lightweight, collaborative security engine that analyzes logs to detect malicious behavior and shares threat intelligence across its global network to protect servers in real time.

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Source: [FOSSHunter — CrowdSec](https://www.fosshunter.com/tools/crowdsec) — cite `synced_at` and the catalog revision when quoting metrics.
Interpretation rules: https://www.fosshunter.com/llms-full.txt