Choosing between EPUB and MOBI can be tricky since each format offers unique features. The format you pick will affect how eBooks work on different devices and platforms. In this article, we’ll break down the differences to help you choose the best option. Plus, we’ll show you how to easily convert between them using PDF Guru.
What is the MOBI format?
The MOBI format is an eBook file type originally developed for the Mobipocket Reader, which later became a standard format for Amazon Kindle devices. As a proprietary format, MOBI had more restrictions in terms of use and modification compared to other eBook file types.
Amazon gradually replaced MOBI with newer formats like AZW and AZW3, but it was still widely used for years until support ended in August 2022. Although it’s no longer actively used, you can still open and convert MOBI files, making them handy for older eBook collections.
What is the EPUB file format?
The EPUB format, short for Electronic Publication, is a widely used option for eBooks and digital publications. As an open standard, it can be created and used freely without special permissions or licenses. Designed for versatility, EPUB is compatible with various devices and platforms, making it a universal choice for digital reading.
What is the difference between EPUB and MOBI?
Knowing how each one works can make all the difference. Let’s break down the key distinctions.
EPUB vs. MOBI: A look at compatibility
Curious about which eBook formats work on popular platforms? Here’s a simple breakdown to help you out:
Amazon: Amazon now accepts EPUB files, which it converts to its own Kindle format (AZW3). MOBI files only work in the Kindle app and aren’t supported on Kindle Fire tablets anymore.
Apple Books, Google Play Books, Kobo, and Barnes & Noble Press: These platforms only accept EPUB files and don’t support MOBI.
IngramSpark: This platform only accepts EPUB files, highlighting its status as today's standard eBook format.
As you see, most eBook marketplaces now prefer or require EPUB, while MOBI is no longer widely supported.
What file types does Kindle support?
As Kindle remains a versatile option for all kinds of digital content, it’s useful to know if your files will work smoothly on these devices. Here’s a quick overview of Kindle-accepted formats:
AZW/AZW3: Amazon’s dedicated Kindle file formats, with AZW3 offering better formatting.
MOBI: Readers used MOBI for Kindle as the main file type, but it’s now outdated. Secure files may not work on all devices.
PRC: Similar to MOBI, it works with Kindle devices but no longer supports new uploads.
EPUB: Compatible thanks to the "Send to Kindle" feature, which automatically converts it to a Kindle-friendly format like AZW3.
PDF: Supported, but the text doesn’t reflow, which can make reading tricky.
TXT, HTML, DOC/DOCX: Plain text, basic web pages, and Word documents are all supported.
Images: Kindle displays JPEG, PNG, BMP, and GIF files.
Is MOBI or EPUB better for Kindle?
So, EPUB vs. MOBI for Kindle? For modern Kindle devices, EPUB is the clear winner. While older Kindles may still support MOBI, it’s no longer an option for new eReaders since they don't have the "Send to Kindle" feature.
How to convert EPUB to MOBI and vice versa?
After all the talk about MOBI vs. EPUB, here’s the bottom line: we’re here for whatever works best for you. With PDF Guru, converting between these formats is quick and easy. Just follow these steps:
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- Open the EPUB to MOBI converter.
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- Hit the + button or drag & drop your file into the window.
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- Give it a few seconds to process your file.
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- When it’s ready, download the converted file to your device. It’ll also be saved in your account for easy access later.
What about PDFs?
While this article focuses on EPUB and MOBI, PDF remains a go-to format for sharing, collaboration, editing, and preserving document integrity. With PDF Guru, you can easily convert MOBI to PDF or EPUB to PDF as needed.
Final thoughts
We hope this guide has helped clarify the key differences between eBook formats, making it easier for you to decide whether to choose EPUB or MOBI for Kindle and other eReaders. Whether you’re creating digital content or enjoying your favorite eBooks, you can now make an informed decision with confidence.