Home : File Types : MOBI File

.MOBI File Extension

File TypeMobipocket eBook

DeveloperAmazon
Popularity
4.0 (75 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryeBook Files
FormatBinary

Binary

This file is saved in a binary format, which requires a specific program to read its contents.

What is a MOBI file?

eBook saved in the MOBI format, a format originally used by the Mobipocket Reader but now supported by several different readers; may incorporate DRM copyright protection to prevent copying or unauthorized viewing; supported by various eReaders, tablets, PDAs, and desktop computer applications.

More Information

Amazon's new Kindle Format 8 (KF8) is based on the MOBI format. KF8 supports many new formatting and layout options, including HTML5 and CSS3 content and embedded fonts. KF8-formatted eBooks are saved and distributed as ".mobi" files or as .AZW3 files, depending on the device that downloads the eBook. eBook authors can compile KF8 books using Amazon's KingleGen software. Before distribution, authors can preview KF8 eBooks on a Mac or PC with Amazon's Kindle Previewer software.

Amazon now owns the MOBI format. Amazon's eBook formats, including .AZW, .AZW1, and AZW3, use the MOBI format but incorporate a proprietary DRM scheme.

NOTE: Mobipocket eBooks also use the .PRC extension.

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Programs that open MOBI files
Windows
Amazon Kindle for PC
Amazon Kindle Previewer
Calibre
Mobipocket Reader Desktop
Geometer Plus FBReader
BookDesigner
Cool Reader
MBP reader
Icecream Ebook Reader
Mac
Amazon Kindle for Mac
Amazon Kindle Previewer
Calibre
Geometer Plus FBReader
Linux
Calibre
Geometer Plus FBReader
Cool Reader
MBP reader
Android
Cool Reader
Updated 11/11/2014

.MOBI Extension Information

This page contains information about the file extension MOBI and its known file associations. Our goal is to help you understand what a *.mobi file is and how to open it.

The Mobipocket eBook file type, file format description, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and do not publish any information we have not verified.

If you would like to suggest any additions or updates to this page, please let us know.