How to open a MOBI format file

MOBI-files are designed specifically for mobile devices or eReader-devices. The format is very light in size and supports bookmarks, notes, fixes and JavaScript. Also in the file, along with the e-book, can be built DRM or other copyright protection to prevent copying and illegal viewing. The current Kindle formats (AZW3, KF8 and KFX) are based on MOBI and are a proprietary format used exclusively on Kindle devices. Actually, MOBI files can still be opened directly on the Kindle, without any additional manipulation.

How to open a MOBI format file

Since MOBI is an e-book format, it is easy to handle most e-readers, such as Calibre, FBReader, MobiPocket Reader and others. Once you download and install one of the free apps, opening any of your MOBI files will be very easy. In the case of Calibre, all you have to do is click on the Add books button and then choose one of the options shown in the picture below.

How to convert a MOBI file

In the same way as in the case of all other file formats, you'll need special software to convert MOBI to other format. If you just try to change the extension, you may get a corrupted and unusable file. Along with the reader, Calibre program is equipped with a convenient conversion tool that can convert any of your e-books into 16 different formats.

Convert the ebook format using online file converters

If you don't want to download third-party file conversion applications, there are several good online converters that allow you to convert some of the most popular formats like ePUB, PDF, FB2 and LRF. This is probably one of the fastest ways, since you don't need to download any software and wait for it to be installed. Free online file conversion services: onlineconvertfree, Convertio, and Zamzar. Just go to one of these websites, upload your file and specify the format you want to output.