ePub Viewer

Read ePubs in a reader view style window, convert into PDF or use text to speech

ePub Viewer is a versatile Chrome extension designed for easy reading of ePub and OPF files directly within the browser. Utilizing a clean "Reader View" interface, it allows users to comfortably read eBooks without installing additional software. Features include three customizable color themes — light, dark, and sepia — along with adjustable font sizes and families accessed via an intuitive side panel.

The extension supports smooth navigation through an embedded table of contents, enabling users to jump between chapters effortlessly. It also remembers your last reading position and encodes it in the address bar, letting you resume reading anytime by reopening the URL. Additional capabilities include full-screen mode for distraction-free reading, the ability to convert ePubs to PDFs, text-to-speech functionality, and loading books from local files. The current version enhances usability by showing loading progress percentages, making ePub Viewer an essential tool for eBook enthusiasts.

By:
Brian
Daily users:
337 1
Rating:
2.90
(10)
Version:
0.1.3 Last updated: 2020-01-20
Version code:
4945084
Creation date:
2019-07-01
Risk:
Low risk impact Moderate risk likelihood
Permissions:
  • storage
  • contextMenus
  • notifications
  • chrome://favicon/
Size:
217.96KB
URLs:
Website
Full description:
See detailed description
Source:
Firefox Browser Add-ons
Data ingested on:
2025-07-10

Other platforms

ePub Viewer (v0.2.0)
5,000 3.64 (14)
ePub Viewer (v0.2.0)
2,164 4.80 (4)

User reviews

by 敬念*****, 2025-03-25

by 全民*****, 2025-02-25

I really appreciate the extra effort to handle fonts, and manage white space appropriately.
by Fi*****, 2024-10-21
View all user reviews ›

Extension safety

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

ePub Viewer requires very minimum permissions.

Risk impact analysis details
  • Medium Enables sending notifications which can be spammed but have minimal direct security impact.
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Browser Add-ons, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

ePub Viewer is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Medium **** ********* *** *** **** *******
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Upgrade to see full risk analysis details

Compare add-ons

Similar add-ons

Here are some Firefox add-ons that are similar to ePub Viewer:

Popular extensions / apps

Here are some popular extensions / apps that you might be interested in: