Calibre-Web vs Kavita
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
Kavita
Fast self-hosted digital library for all reading
| Feature | Calibre-Web | Kavita |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 95 · Excellent | 93 · Excellent |
| Category | E-books & Media Library | E-books & Media Library |
| License | GPL-3.0 | GPL-3.0 |
| Language | Python | C# |
| Setup difficulty | Easy | Easy |
| Min. RAM | 256 MB | 512 MB |
| Deployment | docker | docker |
| GitHub stars | ★ 18,232 | ★ 11,728 |
| First released | 2017 | 2021 |
| Replaces | Kindle, Goodreads | Kindle, ComiXology |
What are Calibre-Web and Kavita?
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
Kavita
Kavita is a fast, self-hosted digital library that handles e-books, comics, manga, and magazines with a polished reader. It targets readers with mixed digital collections. It is deployed via Docker.
- Handles books, comics and manga
- Fast polished web reader
- Collections and reading lists
- OPDS support
Calibre-Web vs Kavita: key differences
Calibre-Web is written in Python, while Kavita is built with C#. Calibre-Web is the lighter option, starting around 256 MB of RAM against 512 MB for Kavita. Calibre-Web is the more established project (first released 2017), while Kavita arrived in 2021.
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 Kavita if…
- Great mixed-media support
- Fast and modern
- Active development
Watch out for
- No metadata editing
- Library organization is folder-based
Frequently asked questions
Is Calibre-Web or Kavita better?
Neither is universally better. Calibre-Web has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are Calibre-Web and Kavita free and open-source?
Yes. Calibre-Web is licensed under GPL-3.0 and Kavita under GPL-3.0. Both can be self-hosted at no software cost.
Can I run Calibre-Web and Kavita with Docker?
Calibre-Web: yes. Kavita: yes.
Which is lighter on resources, Calibre-Web or Kavita?
Calibre-Web has the smaller minimum footprint at 256 MB of RAM, compared to about 512 MB for Kavita. Real-world usage depends on library size, user count, and enabled features.