DOCX to HTML

Word can save a document as HTML, but the result is meant to look like the printed page, not to live inside a website. It is packed with inline styles, Office namespaces, special fonts and spacing rules, and pasting it into a CMS usually breaks the site's typography. This tool reads the structure of the document instead. A paragraph styled as Heading 1 becomes a top-level heading, Heading 2 becomes a second-level heading, a bulleted list becomes a real list, and a Word table becomes a table. What you get is short, valid HTML that your own CSS can style, that screen readers understand, and that search engines read as a properly structured page.

The conversion keeps the content and its structure. Visual formatting that belongs to your website's design is deliberately left to your stylesheet.

With Embed in the HTML, each picture is stored inside the HTML as a data URI, so a single file contains everything — handy for emails, previews and quick sharing. For a website you may prefer Leave out, then upload the images to your media library and insert them there, which keeps the HTML small. Download as a complete web page to get a standalone file that opens in any browser with a simple readable style, or as an HTML fragment containing only the document's content, ready to paste into a page template, a blog editor's HTML view or a static-site generator.

Documents often contain contracts, reports and personal details, so nothing is uploaded: the file is unpacked and converted in your browser with mammoth, an open-source library. The result is cleaned before it is shown — scripts, embedded frames, form fields and javascript links are removed — and the preview runs in a sandboxed frame that cannot run code or load anything from the internet. Each file is checked by its content: an old Word 97–2003 .doc file, an Excel workbook or a file merely renamed to .docx gets a clear message instead of a broken result. Documents up to 100 MB can be opened.

Only the modern .docx format is supported; open an old .doc file in Word or LibreOffice and save it as .docx first. Headers, footers, footnotes, comments, text boxes and tracked changes are not part of the HTML, and charts or SmartArt only come across if Word stored a picture of them. Custom paragraph styles are converted as ordinary paragraphs. For Markdown instead of HTML use DOCX to Markdown, and to go the other way use HTML to DOCX.