All-in-one ebook reader

Koodo Reader is an all-in-one ebook reader that can help you better manage and study your ebooks. It's free and open-source.

Download for Linux
Live Demo

Runs on Windows, macOS, Linux and Web

Stable Version 1.3.9 (2021.12.4), Try Out Developer Version

Our features
Free and Open Source

Koodo Reader is licensed under AGPL-v3.0, you can view our source code on Github, feel free to star, fork, submit issue and pull request, to help Koodo Reader become better

Extensive Formats Support

Koodo Reader supports extensive ebook formats

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Epub
.epub
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Documents
.pdf, .djvu
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Kindle
.azw3
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Mobipocket
.mobi
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Plain text
.txt
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FictionBook
.fb2
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Comic book
.cbr, .cbz, .cbt
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Rich text
.md, .docx, .rtf
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Hyper Text
.html, .xml
Cross Platform

Koodo Reader runs on Windows 7+ (32bit and 64bit), macOS 10.11+ (x64 and ARM arch), all Linux distrubutions (via AppImage, deb, snap, rpm also provided) and Web

Sync and Backup

Koodo Reader values the safety of your data

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Sync all your data
Customize the source folder and synchronize among multiple devices using OneDrive, iCloud, Dropbox, etc
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Backup and Restore
Save your data to Dropbox, Webdav and local computer, and restore whenever you want
Powerful Functionality

Koodo Reader is packed with powerful functionality

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Study in Depth
Add bookmarks, notes, highlights to your books, text-to-speech, translation over 25 languages
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Layout Mode
You can read book in single-column, two-column, or continuous scrolling layouts
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Customizable UI
Adjust font size, font family, line-spacing, paragraph spacing, background color, text color, margins, and brightness and more
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Theme Colors
Koodo Reader supports night mode and switching among 5 different theme colors.
Minimalist Design

Koodo Reader follows the principle of minimalist design, offering distraction-free and immersive reading experience