head to head · open source
calibre-web vs TranslateBooksWithLLMs
calibre-web has 18,530 GitHub stars, 1,902 forks, 409 open issues and last shipped 26 days ago. TranslateBooksWithLLMs has 2,569 stars, 342 forks, 23 open issues and last shipped 2 days ago. calibre-web leads on adoption by 621% (18,530 vs 2,569 stars). calibre-web is written in Fluent under GPL-3.0; TranslateBooksWithLLMs is written in Python under AGPL-3.0. calibre-web has attracted 10% as many forks as stars, TranslateBooksWithLLMs 13%. TranslateBooksWithLLMs was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (epub), so they are genuine substitutes rather than adjacent tools.
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 | TranslateBooksWithLLMs | |
|---|---|---|
| GitHub stars | ★ 19K | ★ 2.6K |
| License | GPL-3.0 | AGPL-3.0 |
| Written in | Fluent | Python |
| Last push | 2026-10-10 | 2026-11-03 |
| Forks | ⑂ 1.9K | ⑂ 342 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick calibre-web if
- You weight community size — 19K 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 TranslateBooksWithLLMs if
- You want the TranslateBooksWithLLMs feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches Python
- You evaluated both and TranslateBooksWithLLMs fits your workflow better
About calibre-web
Calibre Web Calibre Web is a web app that offers a clean and intuitive interface for browsing, reading, and downloading eBooks using a valid Calibre database. Table of Contents (click to expand) 1. About 2. Features 3. Installation Installation via pip (recommended) Quick start Requirements 4. Docker Images 5. Troubleshooting 6. Contributor Recognition 7. Contact 8. Contributing to Calibre Web This software is a fork of library and licensed under the GPL v3 License. Features Modern and responsive Bootstrap 3 HTML5 interface Full graphical setup Comprehensive user management with fine grained per user permissions…
read the full calibre-web overview →
About TranslateBooksWithLLMs
TBL Translate Books with LLMs A desktop app that translates books , subtitles , and documents with AI local or cloud. Drop a file, pick a language, get the result. Formats: EPUB, SRT, DOCX, TXT No size limit. Process documents of any length from a single page to thousand page novels. The intelligent chunking system handles unlimited content while preserving context between segments. Perfect preservation. Your documents come out exactly as they went in: EPUB formatting, styles, and structure remain intact. SRT timecodes stay perfectly synchronized. Every tag, every timestamp, every formatting detail is preserved…
read the full TranslateBooksWithLLMs overview →
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Frequently asked questions
Is calibre-web or TranslateBooksWithLLMs more popular?
calibre-web has 18,530 GitHub stars and TranslateBooksWithLLMs has 2,569. calibre-web has the larger community by that measure.
Are calibre-web and TranslateBooksWithLLMs free?
Both are open source. calibre-web is licensed under GPL-3.0 and TranslateBooksWithLLMs under AGPL-3.0. Neither carries a licence fee.
What is the difference between calibre-web and TranslateBooksWithLLMs?
calibre-web is written in Fluent and TranslateBooksWithLLMs in Python. 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 TranslateBooksWithLLMs?
Choose calibre-web if you want the larger community (18,530 stars) or its GPL-3.0 licence terms. Choose TranslateBooksWithLLMs if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.