Alternatives to Koodo Reader
A modern ebook reader for fifteen-plus formats that syncs your library and reading progress through storage you already own. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Koodo Reader
A modern ebook reader for fifteen-plus formats that syncs your library and reading progress through storage you already own.
Replacements
Listings that take over the same core job as Koodo Reader.
Readest
A modern ebook reader for EPUB, PDF, MOBI and comics, with highlights, notes, translation, text to speech and sync across every platform.
Readest is also AGPL-licensed and cross-platform, adding split-screen reading and translation, but sync runs through a hosted service with paid tiers rather than your own storage.
FBReader
Cross-platform ebook reader supporting EPUB, FB2 and Readium LCP.
FBReader keeps library and reading position across desktop and mobile, but it is not open source and some features need paid add-ons.
Foliate
A calm, well-made GTK ebook reader for Linux that stores your notes as plain JSON you can sync yourself.
Foliate is a GTK reader for Linux only, storing annotations as plain JSON files you sync yourself, with dictionary lookup and text-to-speech.
Thorium Reader
Read EPUB books with an accessible desktop reader.
Thorium Reader is a BSD-licensed accessible EPUB reader for Windows, macOS and Linux, without mobile or web versions.
KOReader
A reader you install on a Kindle, Kobo or PocketBook that opens the formats the stock software refuses.
KOReader installs on e-readers such as Kindle, Kobo and PocketBook as well as Android, with a plain e-ink interface and no official iOS build.
Moon+ Reader
A configurable Android ebook reader for EPUB, PDF, MOBI, comics and many other formats.
Moon+ Reader is a closed-source Android-only reader with very wide format support and extensive display options, with some features locked behind the paid Pro version.
Librera Reader
A customizable Android reader for PDF, EPUB, MOBI, DjVu, FB2 and comic book files.
Librera Reader is a GPL-3.0 Android-only reader covering DjVu and comics with offline dictionaries and text-to-speech, and its cross-device sync relies on Google Drive.
ReadEra
An ad-free reader for Android and iOS that opens ebooks, PDFs, office documents and comics.
ReadEra is a free, closed-source reader for Android and iOS that opens ebooks, PDFs, Word files and comics with no ads or registration, but it has no desktop version.
Also worth comparing
These listings name Koodo Reader as their own alternative, so the relationship runs both ways.
Adobe Digital Editions
A free ebook reader from Adobe for EPUB and PDF books on desktop and mobile.
Koodo Reader is open source under AGPL-3.0, runs on desktop, mobile and web, and syncs through storage you own, but it opens DRM-free files only.
Apple Books
Apple's app for buying, reading and listening to ebooks and audiobooks on iPhone, iPad and Mac.
Koodo Reader is an open source AGPL-3.0 reader on desktop, mobile and web that syncs through your own storage, but it has no store and opens DRM-free files only.
Arianna
A KDE ebook reader and library manager for EPUB files on the Linux desktop.
Koodo Reader reads over fifteen formats on desktop, mobile and web, syncing through storage you control, under the AGPL-3.0 license, though DRM books will not open.
BookFusion
An ebook reader and cloud library that syncs your own EPUB and PDF collection across devices.
Koodo Reader syncs your library through storage you control instead of a hosted cloud, is AGPL-3.0 open source, and runs on desktop, mobile and web.
EPUBReader
A browser extension that opens and reads DRM-free EPUB ebooks directly in the browser.
Koodo Reader has a web version plus desktop and mobile apps, opens over fifteen DRM-free formats, and syncs through storage you configure.
Google Play Books
Google's ebook and audiobook store with a reader for Android, iOS and the web browser.
Koodo Reader is open source and runs on desktop, mobile and web with sync through storage you own, but has no store and reads DRM-free files only.
Icecream Ebook Reader
A Windows ebook reader for EPUB, MOBI, PDF, FB2 and comic files with notes and highlights.
Koodo Reader is free and AGPL-3.0, reads over fifteen formats including comics on desktop, mobile and web, and syncs through storage you control.
Kindle for Web
Amazon's browser-based reader for Kindle books, formerly called Kindle Cloud Reader.
Koodo Reader is open source and runs in the browser and on desktop and mobile, but it opens only DRM-free files, so Kindle Store purchases will not open.
Neat Reader
A cross-platform EPUB reader with annotations, notes export and cloud sync of books and progress.
Koodo Reader is free and AGPL-3.0, reads over fifteen formats on desktop, mobile and web, and syncs through storage you configure instead of a vendor cloud.
Panels
A DRM-free comic reader for iPhone, iPad and Mac with a library and synced reading progress.
Koodo Reader is AGPL-licensed and opens comic archives among fifteen-plus formats on iOS, desktop, Android and the web, syncing through storage you configure.
YACReader
Read digital comics with a dedicated desktop application.
Koodo Reader reads comic archives alongside ebook formats across desktop, mobile and web, but is a general ebook reader rather than comic-focused.
Similar software
Related functionality, not a direct replacement.
Calibre
The ebook library manager: view, convert, edit and catalogue books in every major format, and talk to e-readers.
Kavita
A self-hosted reading server for ebooks, comics and manga, with readers built for each format and OPDS for everything else.
Zotero
Collects the papers and web pages you cite, files them, and writes the bibliography in the style your journal wants.
Calibre-Web
A self-hosted web app for browsing, reading and downloading ebooks stored in a Calibre database.
