head to head · open source
jsdoc vs utopia
jsdoc has 15,465 GitHub stars, 1,492 forks, 459 open issues and last shipped yesterday. utopia has 9,245 stars, 1,035 forks, 27 open issues and last shipped today. jsdoc leads on adoption by 67% (15,465 vs 9,245 stars). jsdoc is written in JavaScript under Apache-2.0; utopia is written in Rust under Apache-2.0. jsdoc has attracted 10% as many forks as stars, utopia 11%. utopia 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
| jsdoc | utopia | |
|---|---|---|
| GitHub stars | ★ 15K | ★ 9.2K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | JavaScript | Rust |
| Last push | 2026-09-19 | 2026-09-20 |
| Forks | ⑂ 1.5K | ⑂ 1.0K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick jsdoc if
- You weight community size — 15K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick utopia if
- You want the utopia feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Rust
- You evaluated both and utopia fits your workflow better
About jsdoc
JSDoc is an API documentation generator for JavaScript that reads annotations in source comments and produces a browsable documentation site, aimed at JavaScript developers and library maintainers who need reference documentation to stay in sync with code.
read the full jsdoc overview →
About utopia
Utopia is the world's first open source enterprise world model: a self hosted knowledge substrate with a bitemporal graph and an ontology at its base layer, built by DeepLethe for teams that need agent memory, governed knowledge, and a trustworthy decision core running on hardware they control.
read the full utopia overview →
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Frequently asked questions
Is jsdoc or utopia more popular?
jsdoc has 15,465 GitHub stars and utopia has 9,245. jsdoc has the larger community by that measure.
Are jsdoc and utopia free?
Both are open source. jsdoc is licensed under Apache-2.0 and utopia under Apache-2.0. Neither carries a licence fee.
What is the difference between jsdoc and utopia?
jsdoc is written in JavaScript and utopia in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, jsdoc or utopia?
Choose jsdoc if you want the larger community (15,465 stars) or its Apache-2.0 licence terms. Choose utopia if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.