Readest is a modern, open-source ebook reader for people who read a lot, and want their books, notes and progress to follow them everywhere.

Open EPUB, PDF, MOBI, AZW3, FB2, CBZ, TXT and Markdown, and tune the reading experience down to the last detail.

Read your way
• Paginated or scrolling modes with smooth page-turn animations
• Custom fonts, themes, spacing, margins and columns
• Vertical text for CJK books
• Built for e-ink, with contrast tuned for slow-refresh screens
• Open up to four books side by side for research and comparison

Your whole library
• Browse and download from OPDS catalogs and public libraries
• Connect to Calibre and Calibre-Web, covers and metadata included
• Organize with custom bookshelf groups
• Full-text search inside a book

Notes that last
• Highlights, bookmarks and structured notes
• Copy a highlight together with a deep link back to the passage
• Export your annotations

Listen and understand
• Text-to-speech with downloadable offline voices and Android Auto support
• Translate a sentence, a page, or an entire book
• Wikipedia and dictionary lookup without leaving the page

Sync everywhere
• Readest Cloud, or bring your own: Google Drive, OneDrive, WebDAV, S3
• KOReader sync keeps your progress in step with your e-reader
• Android, iOS, macOS, Windows, Linux and the web

Readest is open source. Questions or ideas: support@readest.com
Privacy policy: https://readest.com/privacy-policy