Groupdocs logo
  1. GroupDocs Products
  2. Conversion App
  3. Convert DOC to DOCX

DOC to DOCX converter

Convert DOC to DOCX online from any device with a free converter.

Powered by groupdocs.com and groupdocs.cloud.

By uploading your files or using our service you agree with our Terms of Service and Privacy Policy.

We have already processed 2 files with total size of 0 Mbytes

About Conversion app

Convert your DOC files online—no registration needed. No matter your platform—Windows, Linux, or macOS—you can convert your DOC documents rapidly. Drag and drop your file onto the upload form, pick the output format you need, and hit the convert button. After the conversion is finished, download your DOCX file instantly.

Conversion time varies based on the DOC file's size and complexity, but most files convert within seconds. Our advanced options include converting secured documents and delivering conversion results straight to your inbox.

Easily convert your DOC documents from any location and any device, even on mobile. This conversion app is always accessible online and free for basic use.

Check our video
DOC

Microsoft Word Document

The DOC file format is a well known document format developed by Microsoft, primarily used for creating and editing text-based documents. It is supported by Microsoft Word and various other word processing applications, including LibreOffice, Apache OpenOffice, and online tools like Google Docs. The format stores text, formatting, images, tables, and advanced features such as macros, styles, and embedded objects, making it versatile for professional and personal use.

DOCX

Microsoft Word Open XML Document

DOCX is a widely used file format for text documents, developed by Microsoft as part of the Office Open XML standard, offering efficient storage and compatibility. It is primarily associated with Microsoft Word but can be opened and edited by various applications like LibreOffice, Google Docs, and Apple Pages. The format uses a ZIP-compressed structure containing XML files for text, styles, and metadata, supporting advanced features like embedded media, macros, and document protection.

Api cloud icon

APIs available

Convert popular document and image file formats in your app. The GroupDocs.Conversion APIs are available for .NET, Java, and many other platforms and languages.

Learn more
How it works

How to convert DOC to DOCX

Step 1
Click inside the file drop area to upload DOC file or drag & drop DOC file.
Step 2
Click on Convert button. Your DOC files will be uploaded and converted to DOCX result format.
Step 3
Download link of result files will be available instantly after conversion.
Step 4
You can also send a link to the DOCX file to your email address.
FAQ

Questions & Answers

Other Supported Conversions

You can also convert DOC into many other file formats. Please see the complete list below.

© Aspose Pty Ltd 2001-2025. All Rights Reserved.
More apps

Upgrade to Premium

The application usage limit reached.
Upgrade for extended access, starting at $4/month.
Upgrade Learn more