head to head · open source
conductor vs one
conductor has 32,213 GitHub stars, 1,012 forks, 253 open issues and last shipped yesterday. one has 1,745 stars, 533 forks, 771 open issues and last shipped 2 days ago. conductor leads on adoption by 1,746% (32,213 vs 1,745 stars). conductor is written in Java under Apache-2.0; one is written in JavaScript under Apache-2.0. conductor has attracted 3% as many forks as stars, one 31%. 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 | one | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 1.7K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | JavaScript |
| Last push | 2026-09-19 | 2026-09-18 |
| Forks | ⑂ 1.0K | ⑂ 533 |
| 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 one if
- You want the one feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches JavaScript
- You evaluated both and one 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 one
OpenNebula is an open source cloud management platform, licensed under Apache 2.0, for building and operating private clouds, edge infrastructures, distributed cloud deployments, and AI Factories.
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Frequently asked questions
Is conductor or one more popular?
conductor has 32,213 GitHub stars and one has 1,745. conductor has the larger community by that measure.
Are conductor and one free?
Both are open source. conductor is licensed under Apache-2.0 and one under Apache-2.0. Neither carries a licence fee.
What is the difference between conductor and one?
conductor is written in Java and one in JavaScript. 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 one?
Choose conductor if you want the larger community (32,213 stars) or its Apache-2.0 licence terms. Choose one if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.