Convert DOC to DOCX
Convert DOC to DOCX online, free — no installation, no sign-up.
or drop files here to convert DOC → DOCX
Max file size 1 GB. Browser-side conversions have no upload limit.
How to convert DOC to DOCX
Add your file
Drop your DOC file above or click Choose Files.
Convert
We convert your file securely on our server over an encrypted connection.
Download
Grab your new DOCX file — done.
What is DOC?
DOC is the legacy binary Microsoft Word format, still common for documents created before Word 2007.
What is DOCX?
DOCX is the modern Microsoft Word document format based on Open XML.
Frequently asked questions
Drop your DOC file into the box above (or click Choose Files), then click Convert and download your new DOCX file. No account or software needed.
Yes — this converter is completely free with no watermarks and no sign-up.
Yes. Files are sent over an encrypted (HTTPS) connection and automatically deleted from our servers within an hour.
You control the output. Use the advanced options (the gear icon) to set quality, and we preserve as much fidelity as the DOCX format allows.