Word to Markdown Converter

No. The .docx file is unpacked and converted inside your browser using the open-source Mammoth library. Nothing is sent to a server.

Not directly. The old .doc format (Word 97-2003) is a closed binary format that can't be read reliably in a browser. Open the file in Word, Google Docs or LibreOffice and save it as .docx, then convert that file here.

Headings (Heading 1 to 6, Title and Subtitle styles), paragraphs, bold, italic, strikethrough, links, bullet and numbered lists, tables, footnotes and, if you choose, images. Fonts, colours, text size and page layout are dropped because Markdown has no way to describe them.

Headings come from Word's built-in heading styles. If a heading was made by simply enlarging and bolding normal text, Word doesn't know it's a heading, so it comes out as a bold paragraph. Apply the Heading 1, Heading 2 styles in Word and convert again.

By default images are left out and counted, which keeps the Markdown short. Turn on Embed images to include them as base64 data URIs. That makes the Markdown self-contained but much larger, and some Markdown apps don't display data URIs.

Mammoth lists anything it couldn't map exactly, such as a custom paragraph style it doesn't recognise. The text is still converted, usually as a normal paragraph, so the warnings are a guide to what to double-check.