Compare software

Calibre-WebCOPS
Free

Free to use, with source code published on GitHub.

 Free

Free and open source.

Web, Self-hosted Web, Self-hosted
  • Uses an existing Calibre database directly
  • Read books in the browser or download them
  • Works directly with an existing Calibre library
  • OPDS catalog for ebook reader apps
  • Depends on a library created with Calibre
  • Requires running a server
  • Requires a web server you set up and maintain
  • Depends on Calibre for managing the library
Self-hosted Self-hosted
Closed source Open source
License not stated License: GPL-2.0
Not stated if an account is needed No account needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.