head to head · open source
LibreTranslate vs Calibre-Web-Automated
LibreTranslate has 17,269 GitHub stars, 1,794 forks, 126 open issues and last shipped 10 days ago. Calibre-Web-Automated has 6,547 stars, 565 forks, 443 open issues and last shipped 27 days ago. LibreTranslate leads on adoption by 164% (17,269 vs 6,547 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 9%. 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 | ★ 6.5K |
| License | AGPL-3.0 | GPL-3.0 |
| Written in | Python | JavaScript |
| Last push | 2026-10-26 | 2026-10-09 |
| Forks | ⑂ 1.8K | ⑂ 565 |
| 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 Try it online! API Docs Community Forum Bluesky Free and Open Source Machine Translation API, entirely self hosted. Unlike other APIs, it doesn't rely on proprietary software such as Google or Azure to perform translations. Instead, its translation engine is powered by the open source Argos Translate library. Getting Started Quickstart Usage Instructions Community Resources Credits This work is largely possible thanks to Argos Translate, which powers the translation engine. License GNU Affero General Public License v3 Trademark See Trademark Guidelines
read the full LibreTranslate overview →
About Calibre-Web-Automated
Calibre Web Automated (formerly Calibre Web Automator) Making Calibre Web your dream , all in one self hosted digital library solution. Supporting the Project ❤️ CWA is and always will be free and open source. If it makes your library life easier and you're able to support development, contributions go directly to: Testing hardware (ereader devices & tablets ect.) Development tools and infrastructure Coffee ☕ (lots of coffee) Quick Access Features 🪄 Releases 🆕 Roadmap 🛣️ How to Install: 📖 Quick Install 🚀 Docker Compose 🐋⭐(Recommended) Users Migrating from stock Calibre Web 🔄 Post Install Tasks 🏁 Default…
read the full Calibre-Web-Automated overview →
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Frequently asked questions
Is LibreTranslate or Calibre-Web-Automated more popular?
LibreTranslate has 17,269 GitHub stars and Calibre-Web-Automated has 6,547. 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 (17,269 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.