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CLUSTER READER-BOOKS-BOOK · 40 ENTRIES · EARLIEST ENTRY 2013-03-25

Cross-platform e-book readers

This cluster comprises desktop and cross-platform e-book reader applications focused on reading EPUB and other digital book formats, with some positioning for accessibility. Dated entries before the index begin sporadically in 2010 and 2013-2017, then appear more consistently from 2022 onward, with the largest pre-index monthly counts in 2026. TextbookLens leads on traction with 31 stars, far ahead of openthebook (2) and moon-reader-replica (0).

Entry timeline

ENTRY TIMELINE

DEC 2012: 1MAR 2013: 1APR 2015: 1MAR 2017: 1JUL 2022: 1JUL 2023: 1AUG 2023: 1OCT 2023: 1NOV 2023: 1APR 2024: 2JUN 2024: 1JAN 2025: 1APR 2025: 1OCT 2025: 1NOV 2025: 1MAY 2026: 2JUN 2026: 3JUL 2026: 1AUG 2026: 15SEP 2026: 3
DEC 2012SEP 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 1 ai-built · 4 hand-coded · 15 unlabelled

Operator · 4 hobby · 1 indie · 11 open source · 4 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 20 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01TextbookLens31★1 molivehobbyDesktop application that lets Windows users read textbooks in PDF, EPUB, and DOCX formats without an internet connection.
  2. 02moon-reader-replica0★13 daysliveai-builthobbyEbook reader web app that replicates Moon Reader's interface and features for reading digital books.
  3. 03librera.app3★1 molivehand-codedindieE-book reader application available on Android, desktop, and web platforms.
  4. 04openthebook2★1 moliveDesktop ebook reader that opens PDF, EPUB, AZW3, and MOBI files in a distraction-free interface.
  5. 05alexandria-bin0★1 moliveopen sourceEbook reader that opens and displays electronic books.
  6. 06reeden0★1 moliveopen sourceCross-platform ebook reader application for reading digital books with a modern interface.
  7. 07read2★1 mo—hobbyDesktop ebook reader for local libraries that blends the reading window into the screen background and supports auto-scroll, bookmarks, and notes.
  8. 08liseur-desktop-bin0★1 moliveopen sourceDesktop EPUB reader that provides a fast reading experience, paired with an Android counterpart.
  9. 09shelf-ebook-reader0★23 days—E-book reader app that stores digital books on a shelf and displays them for reading in a browser.
  10. 10Afterglow - EPUB Reader0★1 moliveE-book reader that generates ambient themes from book cover art for a personalized reading experience.
  11. 11Bookara0★1 mo—hobbyDesktop e-book reader that opens and navigates PDF and EPUB files with multi-language support and light and dark themes.
  12. 12complete-shelf0★2 moliveInteractive 3D digital bookshelf that lets users browse and inspect books, with a free e-book library.
  13. 13calibre0★1 molivehand-codedopen sourceDesktop application for cataloging, converting, editing, and reading e-books, plus downloading periodicals and syncing with e-reader devices.
  14. 14wizread-bin0★1 moliveopen sourceDesktop e-book reader that lets users open and read digital books.
  15. 15thorium-reader0★23 dayslivehand-codedopen sourceCross-platform desktop reading app that opens e-books and audiobooks.
  16. 16episteme-bin0★3 moliveopen sourceDesktop app for reading books, documents, and other long-form content with a user-friendly reading interface.
  17. 17Foliate0★1 yrabandonedliveopen sourceDesktop e-book reader that opens EPUB, Mobipocket, Kindle, FB2, CBZ, and PDF files with customizable reading modes and annotations.
  18. 18bookord-bin0★1 yrabandonedliveopen sourceDesktop application for reading EPUB e-book files.
  19. 19Thorium Reader unofficial snap0★unknownliveopen sourceDesktop e-book reader that opens and displays EPUB files for readers seeking a cross-platform digital reading application.
  20. 20kisslib0★9 yrabandonedlivehand-codedopen sourceDesktop utility that quickly launches and organizes ebook files on Linux systems.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.