head to head · open source
Windmill vs VvvebJs
Windmill has 18,370 GitHub stars, 1,135 forks, 852 open issues and last shipped yesterday. VvvebJs has 8,718 stars, 1,839 forks, 304 open issues and last shipped 4 months ago. Windmill leads on adoption by 111% (18,370 vs 8,718 stars). Windmill is written in Rust under a custom or non-standard licence; VvvebJs is written in JavaScript under Apache-2.0. Windmill has attracted 6% as many forks as stars, VvvebJs 21%. Windmill was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (open-source), 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
| Windmill | VvvebJs | |
|---|---|---|
| GitHub stars | ★ 18K | ★ 8.7K |
| License | Custom / other | Apache-2.0 |
| Written in | Rust | JavaScript |
| Last push | 2026-11-04 | 2026-07-01 |
| Forks | ⑂ 1.1K | ⑂ 1.8K |
| 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 VvvebJs if
- You want the VvvebJs 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 VvvebJs 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 VvvebJs
VvvebJs Drag and drop page builder javascript library. Built with Vanilla Js with no dependencies or build tools and Bootstrap 5 Website Documentation Forum Twitter Live Demo For a full featured Open Source CMS using VvvebJs page builder check Vvveb CMS Using Vvveb landing page template for demo page and Bootstrap 5 sections and blocks. Features Components and blocks/snippets drag and drop and in page insert. Undo/Redo operations. One or two panels interface. File manager and component hierarchy navigation. Add new page modal with template and folder options. Live code editor with codemirror plugin syntax…
read the full VvvebJs overview →
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Frequently asked questions
Is Windmill or VvvebJs more popular?
Windmill has 18,370 GitHub stars and VvvebJs has 8,718. Windmill has the larger community by that measure.
Are Windmill and VvvebJs free?
Both are open source. Windmill has no licence declared in this registry, and VvvebJs is licensed under Apache-2.0. Both are free to self-host.
What is the difference between Windmill and VvvebJs?
Windmill is written in Rust and VvvebJs 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, Windmill or VvvebJs?
Choose Windmill if you want the larger community (18,370 stars) or its Custom / other licence terms. Choose VvvebJs if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.