head to head · open source
conductor vs hof
conductor has 32,207 GitHub stars, 1,009 forks, 253 open issues and last shipped today. hof has 613 stars, 48 forks, 74 open issues and last shipped 5 months ago. conductor leads on adoption by 5,154% (32,207 vs 613 stars). conductor is written in Java under Apache-2.0; hof is written in Go under Apache-2.0. conductor has attracted 3% as many forks as stars, hof 8%. conductor was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (workflow-engine), 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
| conductor | hof | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 613 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | Go |
| Last push | 2026-09-18 | 2026-05-05 |
| Forks | ⑂ 1.0K | ⑂ 48 |
| 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 hof if
- You want the hof feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and hof 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 hof
hof the higher order framework A tool that unifies data models, schemas, code generation, and a task engine. hof is a CLI tool you add to your workflow. Foundation in CUE Deterministic and Agentic code generation Data models that can evolve and be input to code generation Task engine based on cue/flow Agent servers and VS Code extension hof uses CUE to power the DX and implementation. We believe CUE is a great language for specifying schemas, configuration, and generally for writing anything declarative or this is a source of truth. It has good theory and comes from the same people that brought us containers, Go,…
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Frequently asked questions
Is conductor or hof more popular?
conductor has 32,207 GitHub stars and hof has 613. conductor has the larger community by that measure.
Are conductor and hof free?
Both are open source. conductor is licensed under Apache-2.0 and hof under Apache-2.0. Neither carries a licence fee.
What is the difference between conductor and hof?
conductor is written in Java and hof 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 hof?
Choose conductor if you want the larger community (32,207 stars) or its Apache-2.0 licence terms. Choose hof if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.