Readest

Overview

Readest is an e-book reader, available on Windows and Linux.

Features described in its Flathub listing and in its GitHub repository: full-text search, split view, read-aloud and syntax highlighting.

File formats mentioned: PDF, EPUB, MOBI, AZW3, CBZ and FB2.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

At a glance

All of Readest is free: no feature is locked behind a paid plan, and its code is open.

Its licence (AGPL-3.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

About

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. Built as a modern rewrite of Foliate, Readest leverages Next.js 15 and Tauri v2 to deliver a smooth, cross-platform experience across macOS, Windows, Linux, Android, iOS, and the Web. Whether you're analyzing complex texts, immersing yourself in stories, or exploring new ideas, Readest adapts to your needs with powerful features for deep, thoughtful reading. Key features include: Multi-format support for EPUB, MOBI, KF8 (AZW3), FB2, CBZ, TXT, and PDF (experimental). Switch between scrolling or paginated reading modes for your preferred reading style. Full-text search across the entire book to find relevant sections quickly. Add highlights, bookmarks, and notes to enhance your reading experience and learning. Easily excerpt text from books for detailed notes and analysis. Instantly look up words and terms with built-in dictionary and Wikipedia integration. Translate selected text instantly using DeepL for accurate translations. Parallel Reading: Read two books or documents simultaneously in a split-screen view, perfect for researchers, language learners, and multitaskers. Customize fonts, layout, theme mode, and theme colors for a personalized reading experience. Cross-platform synchronization of book files, reading progress, notes, and bookmarks across all supported platforms. Text-to-Speech functionality for a more accessible reading experience. Organize, sort, and manage your entire ebook library with advanced library management tools. One-click file association to quickly open files in Readest from your file browser. Readest also includes custom CSS support for personalized styling, and code syntax highlighting for technical books. The application is designed to honor the legacy of deep reading while embracing modern technology for an enhanced experience.

Description from Flathub — AppStream (Flathub)