Liseur

300PSA · Books & Reference

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8.0

android

AI summary

Open-source EPUB reader with paginated rendering, four reading themes, highlights, notes, and bookmarks. Version 0.20.0 adds remote library browsing for calibre-web, Komga, BookOrbit, OPDS feeds and Project Gutenberg without syncing progress back, plus a floating auto-scroll control bar and a home-screen widget to browse library covers.

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.

📄 License MIT. Bundled fonts are under the SIL Open Font License.

🎯 Project author:github@chmouel

epub reader open source offline calibre komga self-hosted

What's new

v0.20.0Sep 30, 2026

This release introduces remote library browsing for downloading books without syncing reading progress, a floating control bar for auto-scrolling, and a new home-screen widget to browse your library covers.
▼Reading
・Auto-scroll can now be toggled directly under "Read by scrolling" in the main reading settings, and a floating bar appears on the page while auto-scrolling to pause, adjust speed, or stop (#266). Pausing or stopping immediately saves your spot on the page, and tapping speed controls multiple times in quick succession registers every tap.
▼Library
・You can now save and browse extra catalogs—including calibre-web, Komga, BookOrbit, OPDS feeds, or Project Gutenberg—and download individual titles or full categories (#261, #262). Books downloaded from these sources remain local to your device and never send reading progress or edits back to the remote server or KOReader sync.
・The "Start with free books" card now opens Project Gutenberg as a saved remote catalog, allowing you to browse by language or category and pick specific books (#262). Existing Gutenberg starter shelves are automatically converted on update without losing downloaded books or reading progress.
・A new "Your books" home-screen widget displays book covers from your library with paging arrows (#265). Tapping a cover opens the book, downloading it first if needed, while tapping the header opens the library.
・Reading-time widgets now fetch reading updates from other devices in the background after a sync and indicate whether their totals cover all devices, older synced data, or only the current phone (#265).
▼Fixes
・Tapping covers on the library widget in rapid succession now ignores earlier taps so the correct book opens once the library loads.
・Widget shortcuts now use private launch intents to prevent other apps from triggering unauthorized book downloads or opens.
・Sync updates completed while widgets are already refreshing now schedule a single follow-up refresh rather than triggering repetitive background statistics recalculations.
・Reading widgets no longer display "All devices" when showing reading streaks derived from older synced data.
▼Under the hood
・Release notes now contain signing certificate fingerprints and verification details to verify package authenticity (#264).
▼Verify the APK
・Package name and signing certificate SHA-256 fingerprint (for AppVerifier):
com.chmouel.liseur 39:4E:04:13:02:44:51:B8:78:2C:49:2F:EE:20:3F:94:70:87:1E:63:D6:E4:10:88:E4:2A:F3:F7:C6:65:0A:94
・To verify the downloaded APK with Android SDK build tools:
apksigner verify --print-certs liseur-v0.20.0.apk
Verification must succeed and the certificate SHA-256 digest must match the fingerprint above (ignoring colons and letter case). This is the certificate fingerprint, not the APK file checksum.