Convert DOCX to HTML Online
Free, private DOCX to HTML converter. Your files never leave your browser. All processing happens locally on your device.
Drag & drop files here
images, PDFs, documents, audio, video, and more
No Server Uploads
FormatShift converts files directly in your browser. Your files never leave your device, so there's nothing to intercept or leak.
Instant Export
Files convert on your machine, so downloads are ready right away, even on slow connections.
High Fidelity
Good encoding keeps your files looking and sounding right, even at smaller sizes.
Built for Privacy
Your files are processed entirely in your browser. They never leave your device.
How to convert DOCX to HTML
Drop your DOCX file
Drag your file onto the converter above, or click to browse your files. Your files stay on your device.
Automatic conversion
FormatShift converts your file right in your browser using WebAssembly. No server involved, so your data stays completely private.
Download your HTML file
Once the conversion finishes, click the download button and you are done. The converted file is ready to use.
Why convert DOCX to HTML?
DOCX and HTML serve different purposes. Converting between them lets you use whichever format works best for your situation.
What is a DOCX file?
Office Open XML Document: DOCX is the default file format for Microsoft Word. If someone sends you a Word document, it's almost certainly a .docx file. The format stores text with formatting, images, and layout information.
Created by: Microsoft, introduced with Office 2007
Used for: Word processing documents, reports, letters, resumes, collaborative editing
Technical details: ZIP-compressed XML files containing document content, styles, and media. Supports tracked changes, comments, and complex formatting.
Compatibility: Opens in Microsoft Word, Google Docs, LibreOffice, and most word processors.
What is a HTML file?
HyperText Markup Language: HTML is the language that web pages are written in. Every website you visit is HTML at its core. As a file format, .html files are plain text documents that browsers know how to render.
Created by: Tim Berners-Lee / W3C, first published in 1993
Used for: Web pages, email templates, documentation, any content displayed in a browser
Technical details: Tag-based markup language. Supports text, images, links, tables, forms, and embedded media. Can include CSS for styling and JavaScript for interactivity.
Compatibility: Every web browser renders HTML. It is the most universally supported document format.
DOCX vs HTML
| Feature | DOCX | HTML |
|---|---|---|
| Type | Office Open XML Document | HyperText Markup Language |
| Best for | Word processing documents, reports, letters, resumes, collaborative editing | Web pages, email templates, documentation, any content displayed in a browser |
| Compatibility | Opens in Microsoft Word, Google Docs, LibreOffice, and most word processors. | Every web browser renders HTML. It is the most universally supported document format. |
| Pros | Easy to edit, track changes, widely supported by word processors | Universal browser support, can include rich media, easy to inspect and edit |
| Cons | Formatting can shift between different word processors, not ideal for final distribution | Requires a browser to view as intended, raw HTML is not as readable as Markdown |