head to head · open source
calibre-web vs Lingo.dev
calibre-web has 18,216 GitHub stars, 1,863 forks, 409 open issues and last shipped yesterday. Lingo.dev has 5,404 stars, 811 forks, 34 open issues and last shipped 5 days ago. calibre-web leads on adoption by 237% (18,216 vs 5,404 stars). calibre-web is written in Fluent under GPL-3.0; Lingo.dev is written in TypeScript under Apache-2.0. calibre-web has attracted 10% as many forks as stars, Lingo.dev 15%. calibre-web 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
| calibre-web | Lingo.dev | |
|---|---|---|
| GitHub stars | ★ 18K | ★ 5.4K |
| License | GPL-3.0 | Apache-2.0 |
| Written in | Fluent | TypeScript |
| Last push | 2026-09-19 | 2026-09-15 |
| Forks | ⑂ 1.9K | ⑂ 811 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick calibre-web if
- You weight community size — 18K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Fluent
- You value the larger contributor base for long-term maintenance
pick Lingo.dev if
- You want the Lingo.dev feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and Lingo.dev fits your workflow better
About calibre-web
Calibre Web is a web application that provides a clean and intuitive interface for browsing, reading, and downloading eBooks from a valid Calibre database. It is a fork of the library project (calibreserver) and is licensed under the GPL v3. The project lives in the Calibre ecosystem, and it is distributed through PyPI as the calibreweb package as well as through Docker images. It has been developed for over eleven years and carries roughly 18,183 stars and 1,856 forks on GitHub.
read the full calibre-web overview →
About Lingo.dev
Lingo.dev is an open source suite of localization engineering tools that connects codebases and commits to translation APIs, built for developers and teams maintaining multilingual JavaScript, React, React Native, and TypeScript applications.
read the full Lingo.dev overview →
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Frequently asked questions
Is calibre-web or Lingo.dev more popular?
calibre-web has 18,216 GitHub stars and Lingo.dev has 5,404. calibre-web has the larger community by that measure.
Are calibre-web and Lingo.dev free?
Both are open source. calibre-web is licensed under GPL-3.0 and Lingo.dev under Apache-2.0. Neither carries a licence fee.
What is the difference between calibre-web and Lingo.dev?
calibre-web is written in Fluent and Lingo.dev in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, calibre-web or Lingo.dev?
Choose calibre-web if you want the larger community (18,216 stars) or its GPL-3.0 licence terms. Choose Lingo.dev if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.