head to head · open source
conductor vs Tracely-ai
conductor has 32,207 GitHub stars, 1,010 forks, 253 open issues and last shipped yesterday. Tracely-ai has 1,406 stars, 172 forks, 21 open issues and last shipped 2 days ago. conductor leads on adoption by 2,191% (32,207 vs 1,406 stars). conductor is written in Java under Apache-2.0; Tracely-ai is written in Python under MIT. conductor has attracted 3% as many forks as stars, Tracely-ai 12%. 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 | Tracely-ai | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 1.4K |
| License | Apache-2.0 | MIT |
| Written in | Java | Python |
| Last push | 2026-09-17 | 2026-09-16 |
| Forks | ⑂ 1.0K | ⑂ 172 |
| 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 Tracely-ai if
- You want the Tracely-ai feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Python
- You evaluated both and Tracely-ai 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 Tracely-ai
Tracely is a Python, MIT licensed project for AI agent operations and continuous integration. It lives in the AI agent, LLM observability, CI/CD, and evaluation ecosystem. The project treats production traces as the source of regression tests: when an agent run fails, Tracely can detect the failure, cluster related failures, freeze the bad run into a hermetic replayable case, and block a pull request that would reintroduce the same problem.
read the full Tracely-ai overview →
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Frequently asked questions
Is conductor or Tracely-ai more popular?
conductor has 32,207 GitHub stars and Tracely-ai has 1,406. conductor has the larger community by that measure.
Are conductor and Tracely-ai free?
Both are open source. conductor is licensed under Apache-2.0 and Tracely-ai under MIT. Neither carries a licence fee.
What is the difference between conductor and Tracely-ai?
conductor is written in Java and Tracely-ai in Python. 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 Tracely-ai?
Choose conductor if you want the larger community (32,207 stars) or its Apache-2.0 licence terms. Choose Tracely-ai if its feature set, stack or MIT licence fits better. Both are self-hostable.