head to head · open source
prowler vs ort
prowler has 14,830 GitHub stars, 2,389 forks, 371 open issues and last shipped yesterday. ort has 2,084 stars, 394 forks, 324 open issues and last shipped yesterday. prowler leads on adoption by 612% (14,830 vs 2,084 stars). prowler is written in Python under Apache-2.0; ort is written in Kotlin under Apache-2.0. prowler has attracted 16% as many forks as stars, ort 19%. prowler was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 2 topic tags (compliance, hacktoberfest), 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 | ort | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 2.1K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Python | Kotlin |
| Last push | 2026-09-17 | 2026-09-17 |
| Forks | ⑂ 2.4K | ⑂ 394 |
| 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 ort if
- You want the ort feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Kotlin
- You evaluated both and ort 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 ort
ORT is a suite of tools to automate software compliance checks. It is a FOSS policy automation and orchestration toolkit for managing open source software dependencies. The project lives in the open source compliance ecosystem and is listed under Business Software / Compliance & Risk Management. It is written in Kotlin and licensed under Apache 2.0.
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Frequently asked questions
Is prowler or ort more popular?
prowler has 14,830 GitHub stars and ort has 2,084. prowler has the larger community by that measure.
Are prowler and ort free?
Both are open source. prowler is licensed under Apache-2.0 and ort under Apache-2.0. Neither carries a licence fee.
What is the difference between prowler and ort?
prowler is written in Python and ort in Kotlin. 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 ort?
Choose prowler if you want the larger community (14,830 stars) or its Apache-2.0 licence terms. Choose ort if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.