Epub GitHub Repositories (2026) · Open Source Tools

PyMuPDF is a high performance Python library for data extraction, analysis, conversion & manipulation of PDF (and other) documents.

KCC (a.k.a. Kindle Comic Converter) is a comic and manga converter for ebook readers.

Generate audiobooks from e-books, 50+ TTS engines with voice cloning and 1696 languages!

Kavita is a fast, feature rich, cross platform reading server. Built with the goal of being a full solution for all your reading needs. Setup your own server and share your reading collection with your friends and family.

Readest is a modern, feature-rich ebook reader designed for avid readers offering seamless cross-platform access, powerful tools, and an intuitive interface to elevate your reading experience.

A modern ebook manager and reader with sync and backup capacities for Windows, macOS, Linux, Android, iOS and Web

A multi-platform document and e-book reader.

SDK for building apps & an app store for your Kobo eInk reader

A fast, native and beautiful desktop viewer & editor for markdown and code with PDF export and eBooks rendering.

LocalViewer is a fast and full-featured Android SMB/WebDAV/CBZ/RAW photo/comic/ebook viewer and video player with folder and library support.

A self-hosted library for your ebooks, comics, and audiobooks

Open-source EPUB reader and remote library client for Android, with a Kindle-inspired reading experience

The conformance checker for EPUB publications

Hoshi Reader Android: Japanese EPUB reader with Yomitan lookup, Anki mining, audiobook read-along, and e-ink support.

A toolkit for ebooks, audiobooks and comics written in Swift

Japanese EPUB reader for iOS

The official source code repository for the calibre ebook manager

A simple extensible light novel reader

PDF craft can convert PDF files into various other formats. This project will focus on processing PDF files of scanned books.

Calibre-Web but Automated and with tons of New Features! Fully automate and simplify your eBook set up!