head to head · open source
crowdsec vs afrog
crowdsec has 15,608 GitHub stars, 763 forks, 296 open issues and last shipped yesterday. afrog has 4,460 stars, 493 forks, 111 open issues and last shipped today. crowdsec leads on adoption by 250% (15,608 vs 4,460 stars). crowdsec is written in Go under MIT; afrog is written in Go under MIT. crowdsec has attracted 5% as many forks as stars, afrog 11%. afrog was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| crowdsec | afrog | |
|---|---|---|
| GitHub stars | ★ 16K | ★ 4.5K |
| License | MIT | MIT |
| Written in | Go | Go |
| Last push | 2026-11-13 | 2026-11-14 |
| Forks | ⑂ 763 | ⑂ 493 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick crowdsec if
- You weight community size — 16K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick afrog if
- You want the afrog feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and afrog fits your workflow better
About crowdsec
CrowdSec: open source IDS/IPS, WAF and bot detection CrowdSec is an open source and participative security solution offering crowdsourced server detection and protection against malicious IPs. Detect and block with our Security Engine, contribute to the network, and enjoy our real time community blocklist. Features & Advantages Versatile Security Engine CrowdSec Security Engine is an all in one IDS/IPS and WAF. It detects bad behaviors by analyzing log sources and HTTP requests, and allows active remediation thanks to the Remediation Components. Detection rules are available on our hub under MIT license…
read the full crowdsec overview →
About afrog
A Security Tool for Bug Bounty, Pentest and Red Teaming English • 中文 What is afrog afrog is a high performance vulnerability scanner with support for built in and custom PoCs. It is designed for fast verification, low false positives, and practical workflows across web targets, network services, PoC authoring, and SDK based integration. Install For source builds or go install , use Go 1.27 or later. Binary release Download the latest release from: Build from source Go install Quick start Scan a single target: Scan multiple targets from a file: Run only high and critical checks: Documentation The documentation is…
read the full afrog overview →
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Frequently asked questions
Is crowdsec or afrog more popular?
crowdsec has 15,608 GitHub stars and afrog has 4,460. crowdsec has the larger community by that measure.
Are crowdsec and afrog free?
Both are open source. crowdsec is licensed under MIT and afrog under MIT. Neither carries a licence fee.
What is the difference between crowdsec and afrog?
crowdsec is written in Go and afrog in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, crowdsec or afrog?
Choose crowdsec if you want the larger community (15,608 stars) or its MIT licence terms. Choose afrog if its feature set, stack or MIT licence fits better. Both are self-hostable.