Compare software

Chaka Book ReaderKOReader
Free

Free and open source under AGPL-3.0-or-later.

 Free

Free and open source under the AGPL 3.0.

Android Linux, Android
  • Opens a very wide range of document and comic formats
  • Reads files directly from archives
  • Runs on Kindle, Kobo, PocketBook, Cervantes and reMarkable hardware
  • Opens PDF, DjVu, CBZ, EPUB, FB2, Mobi, DOC, RTF, HTML, CHM and TXT
  • Android only
  • No release downloads listed on the repository
  • Installing on a locked e-reader means jailbreaking it first, at your own risk
  • The settings menus are deep and not self-explanatory
Downloadable app Downloadable app
Open source Open source
License: AGPL-3.0 License: AGPL-3.0
No account needed No account needed
Works offline Works offline

Checked October 2, 2026

Checked September 21, 2026

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