Convert Word Document (Legacy) to Word Document Online
Convert DOC to DOCX online for free. Fast, secure file conversion with no registration required.
DOC vs DOCX
| DOC | DOCX | |
|---|---|---|
| Full Name | Word Document (Legacy) | Word Document |
| Category | Document | Document |
| MIME Type | application/msword | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
| File Extension | .doc | .docx |
| Max Upload | 100 MB | — |
How to Convert DOC to DOCX
- Select your DOC file using the upload area above
- Click "Convert to DOCX" to start the conversion
- Wait for the conversion to complete
- Download your DOCX file
About DOC Format
DOC is the legacy Microsoft Word format used before 2007. While largely replaced by DOCX, it remains widely supported and is still encountered in older documents and some enterprise systems.
About DOCX Format
DOCX is the default document format for Microsoft Word since 2007. Based on Open XML, it supports rich formatting, images, tables, and macros. The most widely used word processing format in business and education.
Frequently Asked Questions
Upload your DOC file using the upload area above, then click "Convert to DOCX". The conversion starts automatically and you can download the result when it's ready.
Yes, FileCraft's DOC to DOCX converter is completely free with no registration, watermarks, or hidden fees. You can convert as many files as you need.
Yes. Your files are processed securely and automatically deleted from our servers after conversion. We do not store, share, or access your files.
Most document files convert in a few seconds. Larger files may take slightly longer depending on file size and complexity.
You can upload DOC files up to 100MB for free conversion. For most use cases this is more than sufficient.