DOC to DOCX Converter

Convert Word 97-2003 DOC files to modern DOCX, free and entirely in your browser. Your text and paragraphs are carried across; images, tables and styling are not.

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DOC to DOCX Converter
Text-accurate DOC to DOCX conversion, run locally in your browser

DOC is the binary format Word used up to 2003; DOCX is the XML-based format Word 2007 and later produce. This tool reads the text out of a DOC file and writes a genuine DOCX that Word, Google Docs and LibreOffice all open normally. Your file never leaves your device.

What carries over: all body text, paragraph breaks and special characters such as curly quotes and accented letters.

What does not: images, tables, headers and footers, fonts, sizes and colours. Reproducing those faithfully requires a full Word layout engine, which cannot run in a browser. If you need formatting preserved exactly, open the file in Word or LibreOffice and use Save As.

Secure & Private

All conversions happen locally in your browser. Your files are never uploaded to our servers, ensuring 100% privacy and security for your sensitive documents.

Lightning Fast

Experience instant conversions without waiting for file uploads or downloads. Our optimized algorithms ensure the fastest processing speeds possible.

Universal Access

Access DOC to DOCX Converter from any device - Windows, Mac, Linux, iOS, or Android. No software installation or registration required.

High Quality

Maintain the highest possible quality during conversion. We use advanced processing to ensure your files look exactly as intended.

About DOC to DOCX Converter

Convert Word 97-2003 DOC files to modern DOCX format, free and entirely in your browser. Text and paragraph structure are preserved; images, tables and styling are not.

Why Use Our DOC to DOCX Converter?

  • Free to use forever - no hidden costs or subscriptions
  • No file size limits or usage restrictions
  • Works offline - once loaded, you can use it without internet
  • Clean, user-friendly interface designed for efficiency
  • Reads the legacy Word binary format directly - no upload, no server
  • Handles curly quotes, accented characters and other Windows-1252 text correctly
  • Detects files that are already DOCX and passes them through untouched
  • Also accepts RTF and plain text saved with a .doc extension

Frequently Asked Questions

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