head to head · open source
pentagi vs fsociety
pentagi has 28,375 GitHub stars, 4,240 forks, 71 open issues and last shipped 6 days ago. fsociety has 1,850 stars, 214 forks, 24 open issues and last shipped 3 days ago. pentagi leads on adoption by 1,434% (28,375 vs 1,850 stars). pentagi is written in Go under MIT; fsociety is written in Python under MIT. pentagi has attracted 15% as many forks as stars, fsociety 12%. fsociety 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 | fsociety | |
|---|---|---|
| GitHub stars | ★ 28K | ★ 1.9K |
| License | MIT | MIT |
| Written in | Go | Python |
| Last push | 2026-10-09 | 2026-10-12 |
| Forks | ⑂ 4.2K | ⑂ 214 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick pentagi if
- You weight community size — 28K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick fsociety if
- You want the fsociety feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and fsociety fits your workflow better
About pentagi
PentAGI is an MIT licensed, self hosted multi agent system written in Go that runs fully autonomous AI agents to perform complex penetration testing tasks inside an isolated Docker sandbox, built for information security professionals, researchers, and enthusiasts.
read the full pentagi overview →
About fsociety
fsociety is a modular penetration testing framework written in Python, distributed under the MIT licence, and intended for security practitioners who want one command line entry point for discovering and running the tools they need.
read the full fsociety overview →
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Frequently asked questions
Is pentagi or fsociety more popular?
pentagi has 28,375 GitHub stars and fsociety has 1,850. pentagi has the larger community by that measure.
Are pentagi and fsociety free?
Both are open source. pentagi is licensed under MIT and fsociety under MIT. Neither carries a licence fee.
What is the difference between pentagi and fsociety?
pentagi is written in Go and fsociety in Python. 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 fsociety?
Choose pentagi if you want the larger community (28,375 stars) or its MIT licence terms. Choose fsociety if its feature set, stack or MIT licence fits better. Both are self-hostable.