Convert DOCX to HTML
Word to clean HTML, in your browser.
Drop your .docx file
or click to browse · max 50MB
or paste with ⌘V
Converting DOCX to HTML extracts the text and structure of a Word document and produces clean, semantic HTML — headings as <h2>/<h3>, lists as <ul>/<ol>, tables as <table>. It's the right path when you need to publish a Word document on the web, embed it in a CMS, or hand it to a system that prefers HTML over the proprietary docx format. The output is intentionally minimal — no Word-specific styling, no embedded fonts, just the content in a form that any browser can render.
When you'd use it
Publish a Word doc to a website
You've got a long-form article written in Word and you want it on your site as proper HTML — not a screenshot, not an embedded PDF. Mammoth's mapping turns Word's heading styles into real heading tags so the content stays accessible and indexable.
Move content into a CMS
WordPress, Ghost, and most modern CMSs accept HTML cleanly but mangle docx if you paste directly. Converting to HTML first gives you something that pastes without surprises.
Send formatted text to systems that need HTML
Email-marketing tools, knowledge bases, internal documentation systems — many speak HTML natively but choke on docx. Converting first removes that translation layer.
How it works
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Your file never leaves the browser.
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Conversion runs locally via WebAssembly and Canvas.
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Download. No account, no history.
Technical notes
This converter uses mammoth.js, which maps Word styles to semantic HTML rather than reproducing Word's exact visual appearance. Headings, paragraphs, lists, and tables convert cleanly. Word-specific features that don't have HTML equivalents — track changes, complex floats, embedded objects — are dropped or simplified. Inline images are converted to base64 data URIs and embedded inside the HTML, so the output is a single self-contained file. The HTML is wrapped in a minimal <style> block with a Georgia-serif body and basic table borders so it renders sensibly on its own.
Frequently asked
What happens to my DOCX files?
Nothing leaves your browser. The conversion runs locally on your device using WebAssembly and the Canvas API. No file is uploaded to a server — including ours.
Is the converted HTML identical to the original?
HTML is a lossless format. Pixel data round-trips exactly when the input is also lossless.
Is there a file size limit?
There is no hard cap, but very large files (hundreds of MB) may be slow on older devices because everything happens in your browser's memory.
Do you collect data on my file or my use?
Your file is invisible to us — it never leaves your browser. For aggregate page-view counts we use Cloudflare's server-side edge logs (no JavaScript beacon runs in your browser). We display Google AdSense ads on conversion result pages; the AdSense script loads on every page and may set advertising cookies after you accept the consent banner (Google Consent Mode v2 asks first). The ads see the page URL and standard browsing signals — they never see your file, because the file never leaves your device.
Will my Word formatting come through exactly?
No, and that's by design. Mammoth maps your styles to semantic HTML rather than trying to reproduce every visual detail — that's how you get clean, accessible output instead of a tangled mess of inline styles. Headings, lists, tables, bold, italic, and links round-trip cleanly; everything else is normalized.
What about embedded images?
Mammoth extracts inline images and embeds them as base64 data URIs in the HTML output. The resulting file is self-contained — you can open or upload it without worrying about separate image files.
Why is the resulting HTML so simple-looking?
The wrapper styles are intentionally minimal so the HTML works as a starting point — drop it into your own template and it inherits your site's typography. If you want to keep the simple look, the wrapper styles are good enough for a default rendering.