head to head · open source
Windmill vs Vibe-Skills
Windmill has 18,370 GitHub stars, 1,135 forks, 852 open issues and last shipped yesterday. Vibe-Skills has 3,793 stars, 343 forks, 42 open issues and last shipped yesterday. Windmill leads on adoption by 384% (18,370 vs 3,793 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%. Vibe-Skills was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai-agents), 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
| Windmill | Vibe-Skills | |
|---|---|---|
| GitHub stars | ★ 18K | ★ 3.8K |
| License | Custom / other | Apache-2.0 |
| Written in | Rust | Python |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 1.1K | ⑂ 343 |
| 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
Open source developer platform for internal code: APIs, background jobs, workflows and UIs. Self hostable alternative to Retool, Pipedream, Superblocks and a simplified Temporal with autogenerated UIs and custom UIs to trigger workflows and scripts as internal apps. Scripts are turned into sharable UIs automatically, and can be composed together into flows or used into richer apps built with low code. Supported languages: Python, TypeScript, Go, Bash, SQL, GraphQL, PowerShell, Rust, and more. Try it Website Docs Discord Hub Contributing Windmill Developer platform for APIs, background jobs, workflows and UIs…
read the full Windmill overview →
About Vibe-Skills
English 中文 Latest release · v4.1.0 Quick start · Measured on SkillsBench Mean verifier reward: +21.12 pp Total tokens: 29.6% · Tool calls: 33.1% SkillsBench is a benchmark designed to evaluate whether AI agents can effectively use Skills to complete professional tasks across diverse domains. Its purpose is to measure how much a model’s ability to solve complex real world tasks improves when it is equipped with specialized Skills. To evaluate performance in production like environments where a large number of Skills are installed simultaneously, we adapted SkillsBench into a more realistic large scale multi Skill…
read the full Vibe-Skills overview →
More in Productivity & Utilities
Related comparisons
More Automation projects
Compare either of these against the rest of the Automation field.
Frequently asked questions
Is Windmill or Vibe-Skills more popular?
Windmill has 18,370 GitHub stars and Vibe-Skills has 3,793. 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 (18,370 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.