Private browser tool

Free EPUB Reader Online

An EPUB reader is an app that opens .epub ebook files and displays their chapters as readable pages. This free online EPUB viewer opens a book directly in your browser, with a table of contents, in-book search, adjustable fonts, light, sepia, and dark themes, and reading progress that is remembered on your device.

No uploads or account Contents and search Saved progress

Your book is read from your device and rendered locally. It is never uploaded, and there is no account, extension, or app to install. Only DRM-free EPUB files can be opened.

Drop an EPUB book here

One DRM-free .epub file up to 100 MB. The book opens on this device and is never uploaded.

Choose an EPUB file to start reading.

Your book stays on this device

How it works

Read an EPUB online in four private steps

1

Open an EPUB file

Choose a .epub file or drag it onto the reader. The book opens on your device and is not uploaded.

2

Move through the book

Use the Previous and Next buttons, the Left and Right arrow keys, or the table of contents to jump to any chapter.

3

Search and adjust the text

Search the whole book for a word or phrase, then set the font size, font family, line spacing, and a light, sepia, or dark theme.

4

Pick up where you left off

Your position and settings are saved in this browser, so opening the same book again returns you to the same place.

EPUB reader FAQ

How do I open an EPUB file online?

Select Choose EPUB file or drag a .epub file onto the reader. The book opens in your browser in a few seconds, with no account, extension, or app to install.

Is my ebook uploaded to a server?

No. The file is read and rendered entirely in your browser. AICurate never receives, stores, or sees your book, and the reader keeps working after the page has loaded even if you go offline.

Does the reader remember my place?

Yes. Your position in each book and your reading settings are saved in this browser's local storage. Open the same book again on the same device and it resumes where you stopped. Clearing site data removes the saved positions.

Can it open EPUB books with DRM?

No. Books protected by DRM, such as many purchases from Kindle, Kobo, or Apple Books, are encrypted and cannot be opened. DRM-free EPUB 2 and EPUB 3 files up to 100 MB work.

Can I change the font and use a dark theme?

Yes. Open Settings to change the font size, font family, and line spacing, and to switch between light, sepia, and dark themes. Reset settings returns everything to the defaults.