Top 13 ebook-reader open source projects

A simple and modern GTK eBook reader

The official source code repository for the calibre ebook manager

An ebook reader application supporting PDF, DjVu, EPUB, FB2 and many more formats, running on Cervantes, Kindle, Kobo, PocketBook and Android devices

Polar is a personal knowledge repository for PDF and web content supporting incremental reading and document annotation.

A book reader for the Vita and Switch. Still a work in progress.

Comic Book Reader in the Browser

💡👀 Read EPUB books with built-in insights from wikis, definitions, translations, and Google.

Epub Reader, focused on annotation.

🌈 A set of reference stylesheets for EPUB Reading Systems, starting with Readium Mobile

An eBook reader built with Electron

An ebook reader for the Nintendo DS, DS Lite, and DSi.

An audiobook 🎧 📔 app made using Flutter

Cross-platform ebook reader built using Xamarin.Forms