head to head · open source
Windmill vs Vibe-Skills
Windmill has 17,982 GitHub stars, 1,097 forks, 852 open issues and last shipped today. Vibe-Skills has 3,367 stars, 291 forks, 42 open issues and last shipped 20 days ago. Windmill leads on adoption by 434% (17,982 vs 3,367 stars). Windmill is written in Rust under a custom or non-standard licence; Vibe-Skills is written in Python under Apache-2.0. Windmill has attracted 6% as many forks as stars, Vibe-Skills 9%. Windmill 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
| Windmill | Vibe-Skills | |
|---|---|---|
| GitHub stars | ★ 18K | ★ 3.4K |
| License | Custom / other | Apache-2.0 |
| Written in | Rust | Python |
| Last push | 2026-09-20 | 2026-08-31 |
| Forks | ⑂ 1.1K | ⑂ 291 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Windmill if
- You weight community size — 18K stars and counting
- You want the Custom / other license terms
- Your stack matches Rust
- You value the larger contributor base for long-term maintenance
pick Vibe-Skills if
- You want the Vibe-Skills feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and Vibe-Skills fits your workflow better
About Windmill
Windmill is an open source developer platform for internal code, including APIs, background jobs, workflows, and UIs. It lives in the self hostable low code automation ecosystem and supports Python, TypeScript, Go, Bash, SQL, GraphQL, PowerShell, Rust, and more. The project is positioned as an open source alternative to Zapier and, in the README, to Retool, Pipedream, Superblocks, and a simplified Temporal.
read the full Windmill overview →
About Vibe-Skills
Vibe Skills is a Python, Apache 2.0 project for intelligent skill routing and workflow orchestration for AI agents. It is positioned in the agentic coding and developer tools ecosystem, with topics that include agent framework, agent skills, ai agents, claude code, codex, and context engineering.
read the full Vibe-Skills overview →
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Frequently asked questions
Is Windmill or Vibe-Skills more popular?
Windmill has 17,982 GitHub stars and Vibe-Skills has 3,367. Windmill has the larger community by that measure.
Are Windmill and Vibe-Skills free?
Both are open source. Windmill has no licence declared in this registry, and Vibe-Skills is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Windmill and Vibe-Skills?
Windmill is written in Rust and Vibe-Skills 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, Windmill or Vibe-Skills?
Choose Windmill if you want the larger community (17,982 stars) or its Custom / other licence terms. Choose Vibe-Skills if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.