Calibre vs Kthoom
A side-by-side comparison of two self-hosted e-books & media library options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Calibre
Powerful ebook library manager with a built-in server
VS
Kthoom
In-browser comic book and archive reader
| Feature | Calibre | Kthoom |
|---|---|---|
| Category | E-books & Media Library | E-books & Media Library |
| License | GPL-3.0 | MIT |
| Language | Python | JavaScript |
| Setup difficulty | Easy | Easy |
| Min. RAM | 512 MB | 64 MB |
| Deployment | docker, bare-metal, binary | bare-metal |
| GitHub stars | ★ 25,578 | ★ 150 |
| First released | 2006 | 2011 |
| Replaces | Kindle, Apple Books | ComiXology |
Why pick each one
Choose Kthoom if…
- Released under the MIT license
- Easy to set up — beginner-friendly
- Written in JavaScript
- Tiny footprint — runs in 64 MB RAM
Frequently asked questions
Is Calibre or Kthoom better?
Neither is universally better. Calibre has the larger community; both share a easy setup difficulty, so the decision comes down to features and licensing.
Are Calibre and Kthoom free and open-source?
Yes. Calibre is licensed under GPL-3.0 and Kthoom under MIT. Both can be self-hosted at no software cost.
Can I run Calibre and Kthoom with Docker?
Calibre: yes. Kthoom: check the project docs for container support.