Word to HTML

What this does

So you have a document written in Word and you want it on the web as HTML, without dragging along all the messy formatting Word usually leaves behind. This converts it. Upload your .docx file, click Convert, and you get clean HTML to copy.

How to use it

1. Choose your Word document, a .docx file, with the file picker.
2. Click Convert.
3. Copy the HTML output with the Copy button.

How it works

The conversion is handled by Mammoth, a library made specifically for turning Word documents into clean HTML. Rather than trying to copy Word's exact look, it reads the styles in your document, a Heading 1, a list, a block of bold text, and maps them to the matching HTML elements. So a paragraph styled as a heading becomes a real <h1>, not a span wrapped in inline styles. Your file is read and converted in your browser, so the document is not uploaded anywhere.

Why the HTML comes out clean

This is what makes it different from copying and pasting straight out of Word, which tends to bring a tangle of inline styles and empty tags with it. Mammoth deliberately ignores most of Word's visual formatting, the fonts, colours, and sizes, and focuses on structure, which gives you tidy, semantic HTML that is easy to style yourself and pleasant to maintain.

It handles the common parts of a document: headings, paragraphs, lists, bold and italic, tables, links, and images. Very elaborate Word features may not have a clean HTML equivalent and can be simplified or left out, so for a heavily designed document it is worth checking the result. For normal written content, it produces exactly the kind of HTML you want to publish.

Questions people ask

References

1. Michael Williamson. Mammoth: convert Word documents (.docx) to HTML. https://github.com/mwilliamson/mammoth.js
2. MDN Web Docs. HTML: HyperText Markup Language. https://developer.mozilla.org/en-US/docs/Web/HTML