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Cosmic ComicsOpenComic
Free

Free and open source under the GPL-3.0 licence.

 Free

Free to download, with an optional donation page.

Linux Windows, macOS, Linux
  • Handles comics, manga and ebooks in one app
  • Open source under GPL-3.0
  • High-quality Lanczos3 downscaling for sharp pages
  • Reading view customizable for comics and manga
  • Official page gives very little feature documentation
  • Linux build is the only one confirmed
  • ePub and PDF support is basic
  • Focused on reading rather than library management
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0-only License: GPL-3.0
Not stated if an account is needed No account needed
Not stated if it works offline Works offline

Checked October 1, 2026

Checked October 1, 2026

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