head to head · open source
PentestGPT vs emba
PentestGPT has 15,534 GitHub stars, 2,706 forks, 81 open issues and last shipped 2 months ago. emba has 3,672 stars, 325 forks, 13 open issues and last shipped 2 days ago. PentestGPT leads on adoption by 323% (15,534 vs 3,672 stars). PentestGPT is written in Python under MIT; emba is written in Shell under GPL-3.0. PentestGPT has attracted 17% as many forks as stars, emba 9%. emba 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
| PentestGPT | emba | |
|---|---|---|
| GitHub stars | ★ 16K | ★ 3.7K |
| License | MIT | GPL-3.0 |
| Written in | Python | Shell |
| Last push | 2026-07-14 | 2026-09-18 |
| Forks | ⑂ 2.7K | ⑂ 325 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick PentestGPT if
- You weight community size — 16K stars and counting
- You want the MIT license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick emba if
- You want the emba feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches Shell
- You evaluated both and emba fits your workflow better
About PentestGPT
PentestGPT is an MIT licensed Python framework that uses large language models to run automated penetration tests and CTF challenges, aimed at penetration testers, security engineers and CTF players who want an agent to drive the tooling rather than working through it by hand.
read the full PentestGPT overview →
About emba
EMBA is the open source security analyzer for firmware of embedded devices, a Shell based command line tool that carries penetration testers, product security teams, developers and product managers from firmware extraction through static analysis, emulation based dynamic analysis and SBOM creation to a web based vulnerability report.
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Frequently asked questions
Is PentestGPT or emba more popular?
PentestGPT has 15,534 GitHub stars and emba has 3,672. PentestGPT has the larger community by that measure.
Are PentestGPT and emba free?
Both are open source. PentestGPT is licensed under MIT and emba under GPL-3.0. Neither carries a licence fee.
What is the difference between PentestGPT and emba?
PentestGPT is written in Python and emba in Shell. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, PentestGPT or emba?
Choose PentestGPT if you want the larger community (15,534 stars) or its MIT licence terms. Choose emba if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.