head to head · open source
conductor vs viewflow
conductor has 32,401 GitHub stars, 1,051 forks, 253 open issues and last shipped yesterday. viewflow has 2,873 stars, 415 forks, 19 open issues and last shipped 5 days ago. conductor leads on adoption by 1,028% (32,401 vs 2,873 stars). conductor is written in Java under Apache-2.0; viewflow is written in Python under AGPL-3.0. conductor has attracted 3% as many forks as stars, viewflow 14%. 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.
← all 20902 open source comparisons
Side by side
| conductor | viewflow | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 2.9K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Java | Python |
| Last push | 2026-11-02 | 2026-10-29 |
| Forks | ⑂ 1.1K | ⑂ 415 |
| 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 viewflow if
- You want the viewflow feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Python
- You evaluated both and viewflow fits your workflow better
About conductor
Conductor Durable Execution for Workflows and Agents Build agents that adapt. Run graphs that endure. Conductor is an open source durable execution platform for microservices, AI agents, and adaptive workflow graphs. It turns runtime choices—loops, branching, fan out, tool calls, approvals, retries, and cancellation—into durable, inspectable execution. It originated at Netflix and is actively maintained by Orkes and the community. Get Running in 60 Seconds Prerequisites: Node.js v16+ and Java 21+ must be installed. Open — your server is running with the built in ui next UI. Upgrading from a previous version? The…
read the full conductor overview →
About viewflow
Viewflow The low code for developers with yesterday's deadline [![build]][build] [![coverage]][coverage] [![pypi version]][pypi] [![py versions]][pypi] Viewflow is a low code library for building business applications with Django. It gives you ready made components for user management, workflows, and reporting. You write less code but keep full control. You can customize everything and connect it to your existing systems. Build full featured business applications in a few lines of code. Viewflow ships as one package with everything included. Each part works on its own, but they all work well together. GPT…
read the full viewflow overview →
More in Infrastructure & Operations
Related comparisons
More Orchestration & Scheduling projects
Compare either of these against the rest of the Orchestration & Scheduling field.
Frequently asked questions
Is conductor or viewflow more popular?
conductor has 32,401 GitHub stars and viewflow has 2,873. conductor has the larger community by that measure.
Are conductor and viewflow free?
Both are open source. conductor is licensed under Apache-2.0 and viewflow under AGPL-3.0. Neither carries a licence fee.
What is the difference between conductor and viewflow?
conductor is written in Java and viewflow 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 viewflow?
Choose conductor if you want the larger community (32,401 stars) or its Apache-2.0 licence terms. Choose viewflow if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.