DOC to DOCX
Convert legacy .doc to modern .docx.
Click to upload or drag & drop
Select a legacy Word document (.doc)
How to use the DOC to DOCX
- 1Upload your legacy Word document (.doc)
Drag and drop or click to select the legacy Word document (.doc).
- 2Convert to DOCX
Click Convert to DOCX and we process it on our secure server.
- 3Download
Your Word .docx file downloads automatically.
Convert DOC to DOCX
This tool upgrades a legacy Word document (.doc) to the modern .docx format with LibreOffice, keeping its content and formatting.
When to use it
- Modernise old .doc files to .docx.
- Open a very old Word file reliably.
- Standardise a folder of documents on .docx.
Private & secure
Your file is uploaded over an encrypted HTTPS connection, converted on our server and streamed straight back to your device. Each request runs in its own isolated workspace that is deleted the instant the result is returned, so nothing is ever stored or shared.
Frequently Asked Questions
Why upgrade .doc to .docx?
.docx is the modern, smaller, more compatible format. Converting old .doc files keeps them openable in current apps and reduces quirks.
Are my files uploaded to a server?
Yes. Unlike our browser-based tools, the DOC to DOCX runs on our secure server because it needs professional desktop-grade software to do the job well. Your file is processed in an isolated workspace and deleted automatically the moment the result is sent back — nothing is stored, logged or shared.
Is it free? Is there a watermark or size limit?
It is completely free with no sign-up and no watermark. Files up to 100 MB are supported per conversion.
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