Librera Reader is an e-book reader for Android that supports a wide range of document formats including PDF, EPUB, EPUB3, MOBI, DjVu, FB2, TXT, RTF, AZW, AZW3, HTML, CBZ, CBR, DOC, DOCX, and OPDS Catalogs.
The tool addresses the need for a unified reader capable of handling diverse e-book and document formats on Android devices. It builds on MuPdf as its rendering foundation and offers both free and premium versions distributed through Google Play and F-Droid, allowing users to choose between versions with or without Google services integration.
Librera Reader suits developers and users seeking a comprehensive, format-agnostic reading application for Android. The project provides flexibility in deployment: developers can build variants with Firebase analytics support for standard distribution or create F-Droid builds without Google services dependencies. The availability on F-Droid indicates suitability for privacy-conscious users and those in restricted environments. The tool's support for OPDS Catalogs enables integration with online library services, extending its utility beyond local files.
Development and support of the project are frozen due to circumstances in the maintainer's country. The README indicates the project maintains multiple application variants and provides direct download access to unreleased builds. Build infrastructure requires the Android NDK and involves keystore configuration for signing, with optional Firebase setup for non-F-Droid variants. The project tracks changes through a changelog and release notes on GitHub.
