Liseur

300PSA · Books & Reference

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8.0

android

AI summary

Open-source EPUB reader for Android with support for calibre-web and Komga servers. Features paginated reading, four themes, highlights and notes, offline dictionary lookups, and two-way reading position sync. Version 0.9.2 fixes progress saving on older Android, speeds up book opening when servers are unreachable, and prevents background syncs from overwriting your current page.

Generated by AI. May contain inaccuracies.

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About this app

Liseur is an open-source EPUB books reader for Android, and a client for calibre-web and Komga: a modern reader that is equally at home with the files on your phone and with your own book server.

👀 Reading * Paginated EPUB rendering through the Readium toolkit, full screen by default * Tap right to go forward, left to go back, the middle for the controls; volume keys work too * A whole page always fits the screen, with no stray scrolling to catch the last line * Four reading themes (Light, Sepia, Dark, Black), independent of the app's own theme * Four bundled open fonts or the publisher's own, plus size, line spacing, margins and brightness * Time left in the chapter, time left in the book, page or percentage, and a scrubber with chapter ticks

🪧 Marking up and looking up * Highlights in four colours, notes, and bookmarks with a corner ribbon * A notebook of everything you marked in a book, exportable as Markdown * Search the whole book, with snippets and jump-to highlighting * Definitions for any selected word, or a hand-off to an offline dictionary app. Online lookups are off until you turn them on, and you choose which Wiktionary edition or mirror answers them

📚 Your library * Index folders of EPUBs, covers and all * Books you are using sort to the front; finished ones get a tick * Pull to refresh picks up whatever changed behind the app's back

🌐 Your own server * calibre-web: one screen sets it up with URL, username and password, and Liseur works out the catalog, download rights and sync token * Komga: paste the server address and an API key * Your server's books merge into the same library with a cloud badge; tap one to download and open it * Reading positions sync both ways, through calibre-web's Kobo protocol or Komga's read-progress API * Remove the copy on the device, or delete the book from the server

🎉 Free software * No trackers, no analytics, no proprietary dependencies. The only network traffic is to the book server you configured and, if you switch online definitions on, to the dictionary site you chose.

🎯 Project author:github@chmouel

epub reader ebook open source offline self-hosted calibre-web

What's new

v0.9.2Aug 21, 2026

This release ensures books open quickly even when your sync server is unreachable, prevents background syncs from overwriting your reading progress, and fixes reading position saving on older Android versions.
●Reading ・Books now open promptly even if your sync server stops answering or is unroutable (such as on inflight Wi-Fi). Opening a book no longer waits behind timed-out sync requests, and sync runs stop at the first sign of server silence rather than timing out for every book on the shelf. (#51) ・Background syncs now leave currently open books alone, preserving the server's remote position as a prompt for the next time you open the book rather than moving the page under you while reading. (#51)
●Fixes ・Fixed reading position saving on Android 9 and older, resolving a database error that appeared on every page turn and prevented progress from being recorded. (#51) ・Server requests, catalog refreshes, and series lookups now fail immediately when your device has no active network connection instead of waiting for connections to time out. (#51)
●Under the hood ・Added a device test harness to benchmark book opening times and verify behavior under unroutable server conditions and airplane mode. (#51)