COPS vs KOReader
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?
COPS
Calibre OPDS and HTML PHP server
VS
KOReader
Document and ebook reader for e-ink and mobile devices
| Feature | COPS | KOReader |
|---|---|---|
| Category | E-books & Media Library | E-books & Media Library |
| License | GPL-2.0 | AGPL-3.0 |
| Language | PHP | Lua |
| Setup difficulty | Easy | Medium |
| Min. RAM | 128 MB | 256 MB |
| Deployment | docker, bare-metal | binary, source |
| GitHub stars | ★ 130 | ★ 28,800 |
| First released | 2013 | 2012 |
| Replaces | Kindle | Kindle, Pocketbook reader |
Why pick each one
Choose KOReader if…
- Released under the AGPL-3.0 license
- Mature project with 28.8k GitHub stars
- Written in Lua
- Tiny footprint — runs in 256 MB RAM
Frequently asked questions
Is COPS or KOReader better?
Neither is universally better. KOReader has the larger community, while COPS is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are COPS and KOReader free and open-source?
Yes. COPS is licensed under GPL-2.0 and KOReader under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run COPS and KOReader with Docker?
COPS: yes. KOReader: check the project docs for container support.