head to head · open source
Nettacker vs emba
Nettacker has 5,596 GitHub stars, 1,181 forks, 249 open issues and last shipped 2 days ago. emba has 3,672 stars, 325 forks, 13 open issues and last shipped 2 days ago. Nettacker leads on adoption by 52% (5,596 vs 3,672 stars). Nettacker is written in Python under Apache-2.0; emba is written in Shell under GPL-3.0. Nettacker has attracted 21% as many forks as stars, emba 9%. Nettacker 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
| Nettacker | emba | |
|---|---|---|
| GitHub stars | ★ 5.6K | ★ 3.7K |
| License | Apache-2.0 | GPL-3.0 |
| Written in | Python | Shell |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 1.2K | ⑂ 325 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Nettacker if
- You weight community size — 5.6K stars and counting
- You want the Apache-2.0 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 Nettacker
OWASP Nettacker is an open source, Python based automated penetration testing and information gathering framework for cyber security professionals and ethical hackers who need to run reconnaissance, vulnerability assessment, and network security audits efficiently.
read the full Nettacker 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 Nettacker or emba more popular?
Nettacker has 5,596 GitHub stars and emba has 3,672. Nettacker has the larger community by that measure.
Are Nettacker and emba free?
Both are open source. Nettacker is licensed under Apache-2.0 and emba under GPL-3.0. Neither carries a licence fee.
What is the difference between Nettacker and emba?
Nettacker 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, Nettacker or emba?
Choose Nettacker if you want the larger community (5,596 stars) or its Apache-2.0 licence terms. Choose emba if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.