Liseur is an EPUB reader for Android built on the Readium toolkit. It opens books from local folders, can read them aloud to you, and is also a client for calibre-web, Komga, BookOrbit, liseur-sync and OPDS catalogs. Books from every source show up on the same shelf.

Read aloud

Liseur reads any book to you, highlighting each sentence and turning the page as it goes. By default it uses the voices already on your phone, so it works offline and the text stays on the device. For other voices, you can connect a speech server: one you run yourself, such as Kokoro, or a hosted service like OpenAI, Mistral or Groq.

Keeps reading with the screen off, with controls in the notification
Speed from 0.75× to 2×
Sleep timer, or stop at the end of the chapter
Remembers the voice you picked for each language

Reading

Paginated or continuous scroll, per book or for the whole library
Bundled fonts (Literata, Vollkorn, Atkinson Hyperlegible, Inter), the publisher's fonts, or fonts you import
Light, sepia, dark and black themes
Adjustable margins, line spacing and brightness
Auto-scroll that continues across chapters
Footer with the page number, what is left of the chapter and estimated time left
E-ink mode without animations, with refresh control on Onyx devices
Highlights in six colours, notes and bookmarks, exportable as Markdown
Full-text search
Footnotes open in a popup
Dictionary lookup through Wiktionary (off by default) or an installed dictionary app

Library

Local folders, including the SD card
Series grouped in reading order, with missing volumes shown
Built-in Project Gutenberg browser
Home-screen widgets for the current book and reading time
ZIP backup of settings, fonts, reading positions and annotations

Sync

Reading position syncs through calibre-web (Kobo sync), Komga, BookOrbit or liseur-sync
A Custom connection pairs any OPDS catalog with any KOReader sync (kosync) server
With liseur-sync: settings backup per device and reading statistics across devices

Privacy

No ads, trackers, analytics or account. Liseur only connects to the book and speech servers you add, to the dictionary site if you turn it on, and to Project Gutenberg when you browse it. It does not use Google Play services or any proprietary library.

MIT licensed. Source code and issue tracker: https://github.com/chmouel/liseur