How to Open EPUB Files on Any Device (Windows, Mac, Android, iPhone)
Got an EPUB file but can't open it? EPUB is the most popular ebook format, but not every device supports it natively. Here's how to open EPUB files on every major platform — or convert them to PDF for instant access.
What Is an EPUB File?
EPUB (Electronic Publication) is an open standard ebook format used by libraries, publishers, and bookstores worldwide. Unlike PDF, EPUB text reflows to fit any screen size, making it ideal for reading on phones and tablets. However, not all devices and operating systems can open EPUB files out of the box. Read our complete guide to EPUB format for more details.
How to Open EPUB Files on Windows
Windows does not natively support EPUB files. Double-clicking an EPUB on Windows 10 or Windows 11 won't open it. Here are your options:
- Microsoft Edge — Recent versions of Edge can open EPUB files directly. Just drag the file into an Edge window.
- Calibre — A free, open-source ebook manager that reads EPUB, MOBI, and many other formats.
- Sumatra PDF — A lightweight reader that supports EPUB, PDF, and MOBI on Windows.
- Convert to PDF — If you don't want to install anything, convert your EPUB to PDF using CheersPDF and open it in any browser.
How to Open EPUB Files on Mac
Mac has built-in EPUB support through Apple Books (formerly iBooks). Simply double-click the EPUB file and it opens in Apple Books automatically. You can also:
- Apple Books — Pre-installed on every Mac. Handles EPUB natively.
- Calibre for Mac — Same as Windows, available for macOS.
- Convert to PDF — Use CheersPDF in Safari or Chrome if you prefer PDF format.
How to Open EPUB Files on Android
Android devices don't have a built-in EPUB reader in most cases, but several excellent free apps are available:
- Google Play Books — Pre-installed on most Android devices. Upload your EPUB and read it.
- ReadEra — Free, ad-free reader supporting EPUB, PDF, MOBI, and more.
- Moon+ Reader — Popular reader with customizable reading experience.
- Convert to PDF — Open CheersPDF in Chrome on Android to convert EPUB to PDF instantly.
How to Open EPUB Files on iPhone and iPad
iOS and iPadOS have native EPUB support through Apple Books. When you download or receive an EPUB file, tap it and choose "Open in Books." You can also:
- Apple Books — Pre-installed on every iPhone and iPad. Full EPUB support.
- KyBook 3 — Free alternative with advanced features.
- Convert to PDF — Use CheersPDF in Safari if you need PDF format for sharing or printing.
How to Open EPUB Files on Chromebook
Chromebooks don't have a built-in EPUB reader, but you can use Google Play Books (if Play Store is enabled) or simply convert EPUB to PDF in Chrome using CheersPDF.
The Easiest Method: Convert EPUB to PDF
If you're struggling to open an EPUB file on any device, the simplest solution is to convert it to PDF. PDF is universally supported on every device, every operating system, and every browser. With CheersPDF, conversion is free, instant, and completely private — your file never leaves your device.
Can You Read EPUB Files Online?
There are a few online EPUB viewers, but most require uploading your file to a server — which is a privacy concern. A better approach is to convert the EPUB to PDF locally using CheersPDF, then read the PDF in your browser. No upload, no privacy risk.
Can't Open Your EPUB? Convert to PDF Instantly
No app needed. No upload. Works on every device.