head to head · open source
prowler vs greenlight
prowler has 14,830 GitHub stars, 2,389 forks, 371 open issues and last shipped yesterday. greenlight has 2,430 stars, 145 forks, 4 open issues and last shipped 1 months ago. prowler leads on adoption by 510% (14,830 vs 2,430 stars). prowler is written in Python under Apache-2.0; greenlight is written in Go under MIT. prowler has attracted 16% as many forks as stars, greenlight 6%. prowler was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (compliance), 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
| prowler | greenlight | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 2.4K |
| License | Apache-2.0 | MIT |
| Written in | Python | Go |
| Last push | 2026-09-17 | 2026-08-05 |
| Forks | ⑂ 2.4K | ⑂ 145 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick prowler if
- You weight community size — 15K 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 greenlight if
- You want the greenlight feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and greenlight fits your workflow better
About prowler
Prowler is an Apache 2.0, Python based open source cloud security platform that automates security and compliance assessments across AWS, Azure, and Google Cloud through thousands of ready to use checks, aimed at cloud security, compliance, and DevSecOps teams that need continuous posture management without a commercial licence.
read the full prowler overview →
About greenlight
Greenlight is an open source command line compliance scanner for mobile apps that target the Apple App Store and Google Play. It lives in the Go, CLI, mobile, React Native, Expo, iOS, and Android ecosystem, and it reads source code, privacy manifests, Android manifests, Gradle builds, IPA binaries, and App Store Connect metadata.
read the full greenlight overview →
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Frequently asked questions
Is prowler or greenlight more popular?
prowler has 14,830 GitHub stars and greenlight has 2,430. prowler has the larger community by that measure.
Are prowler and greenlight free?
Both are open source. prowler is licensed under Apache-2.0 and greenlight under MIT. Neither carries a licence fee.
What is the difference between prowler and greenlight?
prowler is written in Python and greenlight 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, prowler or greenlight?
Choose prowler if you want the larger community (14,830 stars) or its Apache-2.0 licence terms. Choose greenlight if its feature set, stack or MIT licence fits better. Both are self-hostable.