PDFsun.com allows you to convert doc files to docx quickly, easily and entirely online. Upload your files to our platform, let our doc to docx converter do its magic and download your newly created document right away. No more hassle, convert doc to editable docx in just a few steps. Learn how to convert doc to docx with PDFsun.com by following the steps above.

How to convert DOC to DOCX

Step 1

Upload doc-file(s)

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

Step 2

Choose "to docx"

Choose docx or any other format you need as a result (more than 200 formats supported)

Step 3

Download your docx

Let the file convert and you can download your docx file right afterwards

File extension .DOC
Description DOC is a file extension for word processing documents. It is associated mainly with Microsoft Word application. DOC files can also contain charts and tables, videos, images, sounds and diagrams. It supports almost all the Operating Systems.
File extension .DOCX
Description Since 2007, Microsoft began to use a file format docx, which is created by using the Office Open XML. The format is a zip-file containing the text in the form of XML, graphics and other data that can be translated into a sequence of bits using patent-protected binary formats. At first it was assumed that this format will replace the doc, but both formats are still used today.

Why Convert DOC to DOCX?

The main benefit of converting doc to Microsoft Office Open XML is the ability to edit the text directly within the file. This is especially helpful if you want to make significant changes to your doc, as most people are comfortable and familiar with Microsoft Office Open XML. If you're wondering how to change doc to docx for free, it's important to note that quality of the resulting docx is also important, not just the cost. While there are several free doc to docx converters, the majority do not sufficiently maintain the original formatting and spacing of the file. Our conversion tool delivers a result that looks like your original doc file.


We created our doc to docx free converter tool so you no longer need to waste time retyping files in docx. Within seconds you can change your doc to a docx and make the necessary edits. Not only is our doc to docx converter free, online and available whenever you need it, we allow users to convert 2 additional files per month for free too. So go ahead and convert doc to docx online for free. We think you will be happy with the results !

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