head to head · open source
conductor vs osmedeus
conductor has 32,207 GitHub stars, 1,010 forks, 253 open issues and last shipped yesterday. osmedeus has 6,568 stars, 1,031 forks, 3 open issues and last shipped 6 days ago. conductor leads on adoption by 390% (32,207 vs 6,568 stars). conductor is written in Java under Apache-2.0; osmedeus is written in Go under MIT. conductor has attracted 3% as many forks as stars, osmedeus 16%. conductor was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| conductor | osmedeus | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 6.6K |
| License | Apache-2.0 | MIT |
| Written in | Java | Go |
| Last push | 2026-09-17 | 2026-09-12 |
| Forks | ⑂ 1.0K | ⑂ 1.0K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick conductor if
- You weight community size — 32K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick osmedeus if
- You want the osmedeus feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and osmedeus fits your workflow better
About conductor
Conductor is an Apache 2.0 licensed, event driven agentic workflow engine written in Java that provides durable and highly resilient execution for applications and AI agents, aimed at teams running microservices, AI agents, and adaptive workflow graphs that need orchestration they can version, inspect, and recover.
read the full conductor overview →
About osmedeus
Osmedeus is a security focused declarative orchestration engine written in Go and released under the MIT license. It turns complex security workflow automation into auditable YAML definitions, and it pairs that declarative model with encrypted data handling, secure credential management, and sandboxed execution. The project has been public for roughly eight years, carries about 6,563 stars and 1,030 forks, and lives in the penetration testing, reconnaissance, and attack surface management corner of the open source security ecosystem. It is distributed both as shell installed binaries and as the npm package @j3ssi…
read the full osmedeus overview →
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Frequently asked questions
Is conductor or osmedeus more popular?
conductor has 32,207 GitHub stars and osmedeus has 6,568. conductor has the larger community by that measure.
Are conductor and osmedeus free?
Both are open source. conductor is licensed under Apache-2.0 and osmedeus under MIT. Neither carries a licence fee.
What is the difference between conductor and osmedeus?
conductor is written in Java and osmedeus 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, conductor or osmedeus?
Choose conductor if you want the larger community (32,207 stars) or its Apache-2.0 licence terms. Choose osmedeus if its feature set, stack or MIT licence fits better. Both are self-hostable.