Calibre-Web vs Librum
A side-by-side comparison of two self-hosted e-books & media library options — licensing, setup difficulty, resource needs, and what each one replaces.
Calibre-Web
Web app to browse and read your Calibre library
VS
Librum
Modern e-book reader with self-hostable sync
| Feature | Calibre-Web | Librum |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 95 · Excellent | 59 · Fair |
| Category | E-books & Media Library | E-books & Media Library |
| License | GPL-3.0 | GPL-3.0 |
| Language | Python | C++ |
| Setup difficulty | Easy | Medium |
| Min. RAM | 256 MB | 512 MB |
| Deployment | docker | docker |
| GitHub stars | ★ 18,229 | ★ 5,319 |
| First released | 2017 | 2023 |
| Replaces | Kindle, Goodreads | Kindle, Goodreads |
What are Calibre-Web and Librum?
Calibre-Web
Calibre-Web is a web application that provides a clean interface to browse, read, and download books from an existing Calibre library. It targets users who want web access to their e-book collection. It is deployed via Docker.
- Web interface for Calibre libraries
- In-browser e-book reader
- Send to Kindle support
- OPDS feed for apps
Librum
Librum is a modern e-book reader application with a clean interface and a self-hostable server for syncing a library across devices. It targets readers who want a private, synced reading setup. It is deployed via Docker.
- Modern cross-platform reader
- Self-hostable sync server
- Annotations and bookmarks
- Free e-book sources
Calibre-Web vs Librum: key differences
Calibre-Web is written in Python, while Librum is built with C++. Calibre-Web is the lighter option, starting around 256 MB of RAM against 512 MB for Librum. Calibre-Web is the more established project (first released 2017), while Librum arrived in 2023. Calibre-Web has the considerably larger community, at 18,229 GitHub stars versus 5,319.
Why pick each one
Choose Calibre-Web if…
- Great companion to Calibre
- Multi-user access
- Lightweight
Watch out for
- Needs an existing Calibre library
- Not a metadata manager itself
Choose Librum if…
- Clean modern reader
- Syncs across devices
- Open source
Watch out for
- Self-hosting sync is newer
- Smaller ecosystem
Frequently asked questions
Is Calibre-Web or Librum better?
Calibre-Web is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Librum if its specific feature set fits your needs better.
Are Calibre-Web and Librum free and open-source?
Yes. Calibre-Web is licensed under GPL-3.0 and Librum under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Calibre-Web and Librum with Docker?
Calibre-Web: yes. Librum: yes.
Which is lighter on resources, Calibre-Web or Librum?
Calibre-Web has the smaller minimum footprint at 256 MB of RAM, compared to about 512 MB for Librum. Real-world usage depends on library size, user count, and enabled features.