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Convert doc to docx

Free online DOC to DOCX converter

Converting .doc to .docx format.

Convert DOC to DOCX online - free

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How to convert doc to docx file

You can very easily convert Microsoft Word Documents to Microsoft Word Documents (version 2007 and later), as essentially all available word processors and converters support such efforts.

The simplest approach is certainly using Microsoft Word itself (version 2007 and later), as you can easily import your DOC file and re-save it in the newer DOCX format.

You will accomplish the same using any currently available word processing software and converter.

 

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Understanding DOC and DOCX file formats

The DOC file format is a word processing document format used by Microsoft Word prior to the 2007 version. It is a binary file format that contains text, images, and other document elements. On the other hand, the DOCX file format is the successor to DOC, introduced with Microsoft Word 2007. It is based on the Open XML format, which is more efficient and offers better data management and recovery options.

Why convert DOC to DOCX?

Converting DOC to DOCX is beneficial because DOCX files are generally smaller in size, easier to share, and offer improved compatibility with modern software. Additionally, DOCX files support advanced features such as better formatting, enhanced graphics, and improved security.

Best software for converting DOC to DOCX

One of the best software options for converting DOC to DOCX is Microsoft Word itself. Here’s how you can do it:

  • Open the DOC file in Microsoft Word.
  • Go to File → Save As.
  • Select Word Document (*.docx) from the dropdown menu.
  • Click Save to convert and save your file as a DOCX.

Another excellent tool is LibreOffice Writer, which is a free and open-source alternative:

  • Open the DOC file in LibreOffice Writer.
  • Go to File → Save As.
  • Choose ODF Text Document (.odt) or Word 2007-365 (.docx) from the format list.
  • Click Save.

For online conversion, Zamzar is a reliable choice:

  • Visit the Zamzar website.
  • Upload your DOC file.
  • Select DOCX as the output format.
  • Click Convert Now and download your converted file.
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DOC vs DOCX: format comparison

How the DOC and DOCX formats compare on the properties that matter most for this conversion.

Comparison of the DOC and DOCX file formats
Property .DOC Microsoft Word Document .DOCX Microsoft Word Open XML Document
Editable text Limited Yes
Fixed page layout No No
Text formatting Extensive Extensive
Images Yes Yes
Interactive elements Limited Limited
Password protection Basic Basic
Opens in a web browser No No
Typical file size Medium Small
Open standard No Yes
Best used for Editing and post-production Editing and post-production
Introduced 1990 2007
Developer Microsoft Corporation Microsoft Corporation
MIME type application/msword application/vnd.openxmlformats-officedocument.wordprocessingml.document
Open DOC file Open DOCX file

Suggested software and links: doc to docx converters

Ability Write icon

Ability Write

A fully featured word processor from Ability Office software suite
AbiWord icon

AbiWord

A free word processing program available for Windows, Mac & Linux
Apache OpenOffice Writer icon

Apache OpenOffice Writer

Word processor and text editor from OpenOffice.org suite
Apple Pages icon

Apple Pages

A word processor and layout tool
Atlantis Word Processor icon

Atlantis Word Processor

A shareware word processor program
Corel WordPerfect icon

Corel WordPerfect

Corel WordPerfect is word processor for Microsoft Windows
Google Docs icon

Google Docs

Word processor web app from Google
LibreOffice Writer icon

LibreOffice Writer

Full-featured word processing and desktop publishing tool from LibreOffice suite
Microsoft Word icon

Microsoft Word

One of the most popular word processor programs from Microsoft.
Microsoft Word for Mac icon

Microsoft Word for Mac

A macOS version of the popular word processing application from Microsoft.
OfficeSuite icon

OfficeSuite

An Office document editing app running on S60 based smarthones
TextMaker icon

TextMaker

A reliable word processor from SoftMaker Office suite
ThinkFree Write icon

ThinkFree Write

A Korean word processor
Word Mobile icon

Word Mobile

Mobile version of Microsoft Word previously known as Pocket Word

Frequently asked questions

Is the DOC to DOCX converter free?

Yes, converting DOC to DOCX on 101convert.com is completely free. No registration, email address or installation is required.

How large can my DOC file be?

You can upload DOC files up to 1000 MB and convert up to 100 files at once in a single batch.

What happens to my uploaded files?

Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.

Do I need to install any software to convert DOC to DOCX?

No. The DOC to DOCX conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.

Did the conversion fail?

In most cases, the cause is an incorrect file format. Please upload a valid DOC file for this DOC to DOCX conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.

doc to docmhtml doc to dot

Additional formats for
doc file conversion

Reverse conversion

Convert to docx from
other formats

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