Compare software

COPSCalibre-Web
Free

Free and open source.

 Free

Free to use, with source code published on GitHub.

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

Checked October 2, 2026

Checked September 23, 2026

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