Readium

Name: Readium
Rating: 4.01 (1843 reviews)
Author: IDPF

EPUB reader for Chrome

As of May 2026, Readium has 400,000 users and a 4.01/5 rating from 1,843 reviews.

IDPF

Chrome Web Store ↗.crx

Users0%

400.0K

400,000

Rating0%

4.01

1.8K reviews

Reviews0%

1.8K

Version

2.31.1

Manifest V2

History

1 snapshots

Tracking since Apr 25, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 25, 2026	400.0K	4.01	1.8K	2.31.1
Now	400.0K	4.01	1.8K	2.31.1

Permissions & access

Permissions: storageunlimitedStorageapp.window.fullscreen
Host access: https://www.google-analytics.com/*

Screenshots

About

EPUB Reader for Chrome
Readium for Chrome is the Google Chrome application based on ReadiumJS, an open source 
reading system and JavaScript library for displaying EPUB® publications in web browsers. ReadiumJS is a
project of the Readium Foundation. EPUB is a widely adopted portable document format based on Web 
standards such as HTML5, CSS, JavaScript, and SVG. EPUB is a registered trademark of a registered trademark of W3C ® (MIT, ERCIM, Keio, Beihang).

Improvements and Enhancements in this Release
-------------------------------------------------------------
IMPORTANT:  This release, 2.31.0 is the final release of the Readium Chrome Application.  As Google has deprecated Chrome apps, this app is longer actively supported, and will no longer be updated after the 0.31, October 01, 2018 release.  A list of other apps that are powered by Readium can be found at [Readium.org]( https://readium.org/about/applications.html/)

Full release notes can be found here: 
https://docs.google.com/document/d/11yETD9-VR80UMiXRPd-x7T-87SBQYbh0OGSSI5S7-Eg/edit#