Bookworm – Simple, Focused e-book Reader

Bookworm is a simple, open source, user-centric e-book reader.

Bookworm is developed for Elementary OS, a Linux distribution based on Ubuntu. It’s also available for Ubuntu and other Ubuntu based distributions. But the software runs under other popular Linux distributions such as Fedora and openSUSE.

There’s also flatpak and snap packages available to download. These containerised software packages work on all major Linux systems without modification.

Bookwork uses the GObject system.

The software is in an early stage of development.

Features include:

  • Formats supported:
    • PDF;
    • EPUB;
    • MOBI (Kindle format);
    • CBR and CBZ (comic book support).
  • Views for library management and reading in Bookworm. Toggle between a grid view and a list view for the library.
  • Easy, simple layout to read books.
  • Edit a book’s metadata and filtering.
  • Add annotations and tag them for searching.
  • Zoom in/out.
  • Margin set.
  • Line width increase/decrease are available.
  • Supports different reading profiles of light, sepia and dark. Night mode is also supported.
  • Customize reading profile.
  • Two page views – view two chapters side by side.
  • Bookmark pages.
  • Full-screen mode.
  • Keyboard shortcuts for switching between grid view and list view, change font size, enter full screen mode, add/remove bookmark and more.
  • Support for right to left reading.
  • Caching support for fast opening of books in the library (default is on). This preserves the contents extracted from eBook for faster subsequent reading.

Support: GitHub code repository
Developer: Siddhartha Das and many contributors
License: GNU GPL v3 or later



Bookwork is written in Vala. Learn Vala with our recommended free books and free tutorials.

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