head to head · open source
devdocs vs utopia
devdocs has 39,596 GitHub stars, 2,656 forks, 196 open issues and last shipped yesterday. utopia has 8,669 stars, 1,187 forks, 27 open issues and last shipped yesterday. devdocs leads on adoption by 357% (39,596 vs 8,669 stars). devdocs is written in Ruby under MPL-2.0; utopia is written in Rust under Apache-2.0. devdocs has attracted 7% as many forks as stars, utopia 14%. devdocs 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
| devdocs | utopia | |
|---|---|---|
| GitHub stars | ★ 40K | ★ 8.7K |
| License | MPL-2.0 | Apache-2.0 |
| Written in | Ruby | Rust |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 2.7K | ⑂ 1.2K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick devdocs if
- You weight community size — 40K stars and counting
- You want the MPL-2.0 license terms
- Your stack matches Ruby
- 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 devdocs
DevDocs — API Documentation Browser DevDocs combines multiple developer documentations in a clean and organized web UI with instant search, offline support, mobile version, dark theme, keyboard shortcuts, and more. DevDocs was created by Thibaut Courouble and is operated by freeCodeCamp. We are currently searching for maintainers Please reach out to the community on Discord if you would like to join the team! Keep track of development news: Join the contributors chat room on Discord Watch the repository on GitHub Table of Contents: Quick Start · Vision · App · Scraper · Commands · Contributing · Documentation ·…
read the full devdocs overview →
About utopia
Utopia Philosophy · Quick start · Features · Roadmap The enterprise world model built by DeepLethe. It is the first open substrate for knowledge engineering that learns passively and governs itself. Where a knowledge graph or a vector store works to hold present knowledge, Utopia puts time awareness and ontology in the base layer: the knowledge system evolves as material arrives, and conflict detection, reasoning and decision making all run against that ontology. It deploys offline, so a company can stand up a knowledge foundation, a decision core its agents can trust, and a compliance audit trail on hardware it…
read the full utopia overview →
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Frequently asked questions
Is devdocs or utopia more popular?
devdocs has 39,596 GitHub stars and utopia has 8,669. devdocs has the larger community by that measure.
Are devdocs and utopia free?
Both are open source. devdocs is licensed under MPL-2.0 and utopia under Apache-2.0. Neither carries a licence fee.
What is the difference between devdocs and utopia?
devdocs is written in Ruby 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, devdocs or utopia?
Choose devdocs if you want the larger community (39,596 stars) or its MPL-2.0 licence terms. Choose utopia if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.