Convert DOCX to MOBI

Choose file to convert

You have the option to convert your docx file to mobi, as well as a variety of other formats, using our free online converter.

How to convert docx to mobi?

How to convert mobi to docx?

Step 1

Upload docx-file

You can select docx file you want to convert from your computer, Google Drive, Dropbox or simply drag and drop it onto the page.

Step 2

Select «to mobi»

Choose mobi or any of the other 200+ supported formats you'd like to convert to.

Step 3

Download your mobi file

Please wait for the conversion to complete, then click on the download button to obtain your converted file in the mobi format.

The security of your files is our priority

Understanding the importance of the security of our users' data, we have implemented a number of measures to ensure reliable file conversion without the risk of information leakage or privacy violations.

Data encryption

All information uploaded to our platform is SSL encrypted, ensuring privacy during transmission.

Safe storage

After the conversion is completed, the files are stored on secure servers for 24 hours and are automatically destroyed, excluding access by third parties.

Harmless scripts

Our file conversion tools are regularly tested for malicious code or vulnerabilities to eliminate the risk of a potential cyber attack.

Best tool to convert docx to mobi

docx to mobi Fast and easy

Simply drag and drop your docx files onto the webpage, and you'll be able to convert them to mobi or over 250 different file formats, all without having to register, provide an email address, or include a watermark.

Secure docx to mobi Conversion

As soon as you upload your docx files, we instantly delete them. Converted files are then deleted after 24 hours. Furthermore, we ensure that all file transfers are secure through advanced SSL encryption.

No Software Installation Required

You don't have to go through the hassle of installing any software. We handle all docx to mobi conversions in the cloud, which means that none of your computer's resources will be used in the process.

Office Open XML Document

Extension	.docx
Category	🔵 documents
Programs	🔵 Microsoft Office 🔵 LibreOffice 🔵 Kingsoft Office 🔵 Google Docs
Main program	🔵 Microsoft Office
Description	🔵 .docx The .docx format is the default file format for documents created in Microsoft Word starting with Word 2007 and later versions. It is part of the Office Open XML specification and uses XML and ZIP compression to create smaller file sizes. The .docx format supports text, images, styling, and complex document formatting. Compared to the older .doc format, it is more modern and open, and has become the standard for word processing documents in many environments.
Technical details	🔵 The `.docx` format, introduced with Microsoft Office 2007, replaces the older `.doc` format in Microsoft Word. It is based on the Office Open XML standard, utilizing XML to outline document structure and content, which makes it more transparent and easier to process. `.docx` files are essentially zip archives that contain XML files and resources, organized into folders such as 'word', 'docProps', and 'rels' for text, properties, and relationships. The main text is located within `document.xml`, while styling is stored in separate files like `styles.xml`, and directories house embedded media. This format promotes interoperability, reduces file sizes, and enhances recovery from corruption. Most modern word processors support `.docx`, and Microsoft provides compatibility packs for older Word versions. For security reasons, macros are stored in a separate `.docm` file. `.docx` represents a significant advancement in document format technology, with a focus on openness, interoperability, and efficient data management.
Developer	🔵 Microsoft
MIME type	🔵 application/vnd.openxmlformats-officedocument.wordprocessingml.document

Mobipocket eBook

Extension	.mobi
Category	🔵 books
Programs	🔵 Calibre 🔵 Mobipocket Reader 🔵 FBReader 🔵 Cool Reader
Main program	🔵 Amazon Kindle
Description	🔵 MOBI (Mobipocket e-book format) is an electronic book format developed by the French company Mobipocket SA specifically for mobile phones with low bandwidth. It is based on the Open eBook standard using XHTML and can incorporate JavaScript and frames. The MOBI format is widely used on e-book readers, particularly on Kindle devices.
Technical details	🔵 The Mobi files can be formatted in Javascript. Pages, notes, and drawings can be attached to the files. Additionally, the Mobipocket Reader includes a built-in dictionary. There is a 64K limit on images. Despite being cumbersome for larger devices such as desktops and laptops, it has proven to be advantageous for smaller devices like mobile phones. Mobi files are similar to the Amazon Kindle format, but do not have Java capabilities.
Developer	🔵 Mobipocket
MIME type	🔵 mime application/x-mobipocket-ebook