head to head · open source
ProjectDiscovery vs crowdsec
ProjectDiscovery has 32,701 GitHub stars, 3,981 forks, 107 open issues and last shipped yesterday. crowdsec has 15,510 stars, 757 forks, 296 open issues and last shipped 4 days ago. ProjectDiscovery leads on adoption by 111% (32,701 vs 15,510 stars). ProjectDiscovery is written in Go under MIT; crowdsec is written in Go under MIT. ProjectDiscovery has attracted 12% as many forks as stars, crowdsec 5%. ProjectDiscovery 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
| ProjectDiscovery | crowdsec | |
|---|---|---|
| GitHub stars | ★ 33K | ★ 16K |
| License | MIT | MIT |
| Written in | Go | Go |
| Last push | 2026-11-09 | 2026-11-06 |
| Forks | ⑂ 4.0K | ⑂ 757 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ProjectDiscovery if
- You weight community size — 33K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick crowdsec if
- You want the crowdsec feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and crowdsec fits your workflow better
About ProjectDiscovery
English • 中文 • Korean • Indonesia • Spanish • 日本語 • Portuguese • Türkçe Nuclei is a modern, high performance vulnerability scanner that leverages simple YAML based templates. It empowers you to design custom vulnerability detection scenarios that mimic real world conditions, leading to zero false positives. Simple YAML format for creating and customizing vulnerability templates. Contributed by thousands of security professionals to tackle trending vulnerabilities. Reduce false positives by simulating real world steps to verify a vulnerability. Ultra fast parallel scan processing and request clustering. Integrate…
read the full ProjectDiscovery overview →
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 →
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Frequently asked questions
Is ProjectDiscovery or crowdsec more popular?
ProjectDiscovery has 32,701 GitHub stars and crowdsec has 15,510. ProjectDiscovery has the larger community by that measure.
Are ProjectDiscovery and crowdsec free?
Both are open source. ProjectDiscovery is licensed under MIT and crowdsec under MIT. Neither carries a licence fee.
What is the difference between ProjectDiscovery and crowdsec?
ProjectDiscovery is written in Go and crowdsec 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, ProjectDiscovery or crowdsec?
Choose ProjectDiscovery if you want the larger community (32,701 stars) or its MIT licence terms. Choose crowdsec if its feature set, stack or MIT licence fits better. Both are self-hostable.