head to head · open source
pentagi vs mutillidae
pentagi has 32,073 GitHub stars, 4,960 forks, 71 open issues and last shipped 2 days ago. mutillidae has 1,531 stars, 569 forks, 1 open issues and last shipped 1 months ago. pentagi leads on adoption by 1,995% (32,073 vs 1,531 stars). pentagi is written in Go under MIT; mutillidae is written in PHP under GPL-3.0. pentagi has attracted 15% as many forks as stars, mutillidae 37%. pentagi was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (penetration-testing), so they are genuine substitutes rather than adjacent tools.
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
| pentagi | mutillidae | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 1.5K |
| License | MIT | GPL-3.0 |
| Written in | Go | PHP |
| Last push | 2026-10-22 | 2026-09-24 |
| Forks | ⑂ 5.0K | ⑂ 569 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick pentagi if
- You weight community size — 32K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick mutillidae if
- You want the mutillidae feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches PHP
- You evaluated both and mutillidae fits your workflow better
About pentagi
PentAGI P enetration testing A rtificial G eneral I ntelligence Join the Community! Connect with security researchers, AI enthusiasts, and fellow ethical hackers. Get support, share insights, and stay updated with the latest PentAGI developments. ⠀ Table of Contents Overview Features Architecture Agent Supervision Quick Start Agent Docker Access Running Several Instances How to Use PentAGI After Login API Access LLM Provider Configuration Ollama OpenAI Anthropic Google AI (Gemini) AWS Bedrock DeepSeek GLM Kimi Qwen MiniMax Advanced Setup Langfuse Integration Monitoring and Observability Knowledge Graph…
read the full pentagi overview →
About mutillidae
OWASP Mutillidae II OWASP Mutillidae II is a free, open source, deliberately vulnerable web application designed for web security enthusiasts. It serves as a target for learning and practicing web security skills. Mutillidae can be easily installed on Linux and Windows systems using LAMP, WAMP, and XAMMP stacks. Additionally, it comes pre installed on SamuraiWTF and OWASP BWA, and the existing version can be updated on these platforms. With dozens of vulnerabilities and hints to guide the user, Mutillidae provides an accessible web hacking environment suitable for labs, security enthusiasts, classrooms, CTFs…
read the full mutillidae overview →
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Frequently asked questions
Is pentagi or mutillidae more popular?
pentagi has 32,073 GitHub stars and mutillidae has 1,531. pentagi has the larger community by that measure.
Are pentagi and mutillidae free?
Both are open source. pentagi is licensed under MIT and mutillidae under GPL-3.0. Neither carries a licence fee.
What is the difference between pentagi and mutillidae?
pentagi is written in Go and mutillidae in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, pentagi or mutillidae?
Choose pentagi if you want the larger community (32,073 stars) or its MIT licence terms. Choose mutillidae if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.