head to head · open source
LibreTranslate vs Calibre-Web-Automated
LibreTranslate has 16,674 GitHub stars, 1,707 forks, 126 open issues and last shipped 17 days ago. Calibre-Web-Automated has 6,308 stars, 521 forks, 443 open issues and last shipped 1 months ago. LibreTranslate leads on adoption by 164% (16,674 vs 6,308 stars). LibreTranslate is written in Python under AGPL-3.0; Calibre-Web-Automated is written in JavaScript under GPL-3.0. LibreTranslate has attracted 10% as many forks as stars, Calibre-Web-Automated 8%. LibreTranslate 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
| LibreTranslate | Calibre-Web-Automated | |
|---|---|---|
| GitHub stars | ★ 17K | ★ 6.3K |
| License | AGPL-3.0 | GPL-3.0 |
| Written in | Python | JavaScript |
| Last push | 2026-09-03 | 2026-08-07 |
| Forks | ⑂ 1.7K | ⑂ 521 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick LibreTranslate if
- You weight community size — 17K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick Calibre-Web-Automated if
- You want the Calibre-Web-Automated feature set and don't need the biggest community
- You prefer the GPL-3.0 license terms
- Your stack matches JavaScript
- You evaluated both and Calibre-Web-Automated fits your workflow better
About LibreTranslate
LibreTranslate is a free and open source machine translation API written in Python and released under the AGPL 3.0 license. It lives in the open source translation ecosystem and is positioned as a self hosted alternative to hosted translation services. The project does not rely on proprietary software such as Google or Azure for translation. Instead, it uses the open source Argos Translate library as its translation engine.
read the full LibreTranslate overview →
About Calibre-Web-Automated
Calibre Web Automated is a free, GPL 3.0, self hosted digital library server distributed as the Docker image crocodilestick/calibre web automated , aimed at self hosters who want one automated service instead of running Calibre and Calibre Web side by side.
read the full Calibre-Web-Automated overview →
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Frequently asked questions
Is LibreTranslate or Calibre-Web-Automated more popular?
LibreTranslate has 16,674 GitHub stars and Calibre-Web-Automated has 6,308. LibreTranslate has the larger community by that measure.
Are LibreTranslate and Calibre-Web-Automated free?
Both are open source. LibreTranslate is licensed under AGPL-3.0 and Calibre-Web-Automated under GPL-3.0. Neither carries a licence fee.
What is the difference between LibreTranslate and Calibre-Web-Automated?
LibreTranslate is written in Python and Calibre-Web-Automated 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, LibreTranslate or Calibre-Web-Automated?
Choose LibreTranslate if you want the larger community (16,674 stars) or its AGPL-3.0 licence terms. Choose Calibre-Web-Automated if its feature set, stack or GPL-3.0 licence fits better. Both are self-hostable.