Upgrade old Microsoft Word .doc files to modern .docx format for better compatibility, smaller file size, and enhanced security. Preserve formatting, fonts, images, and layout. Process up to 10 files simultaneously with our batch conversion feature.
🔒 Files are processed securely and deleted automatically after conversion.
Follow these simple steps to upgrade your old Word documents to modern DOCX format using our free online tool:
Click the file upload area or the "Choose Files" button to select the Word documents (.doc) you want to convert. You can select up to 10 files at once by holding Ctrl (or Cmd on Mac).
After uploading, you'll see a list of your selected files. Simply drag and drop them to rearrange the order. The converted DOCX files will be bundled in the same sequence.
Once your files are ready, click the green "Convert to DOCX" button to start the batch conversion process. The button activates automatically when at least one file is selected.
Our servers will upgrade your DOC files to DOCX format within seconds. You'll see a progress bar showing the status of your conversion. Larger files may take a few moments longer.
When processing is complete, a download link will appear. Click it to save the ZIP archive containing all converted DOCX files to your computer. Your original files are automatically deleted from our servers for your privacy.
Pro Tip: DOCX files are XML-based, making them smaller, more secure, and less prone to corruption. After conversion, your documents will be fully compatible with Microsoft Word 2007 and later, Google Docs, and LibreOffice.
Convert multiple DOC files to DOCX in seconds with our optimized conversion engine.
Files are automatically deleted after conversion. No data storage or tracking.
Upload and convert up to 10 Word documents simultaneously, saving time and effort.
All converted DOCX files are packaged in a convenient ZIP archive for easy download.
Fonts, images, tables, and layout remain exactly as in your original DOC document.
Works perfectly on smartphones, tablets, and all modern browsers. No app needed.