Free DOCX to Markdown Converter — Runs Instantly in Any Browser

Docx to MD converter

No installs. No uploads. No cost. Just drop your file and get clean Markdown.

By Buck Lawrimore, Editor

If you’ve ever needed to convert a Word document to Markdown — for a blog post, a README, a documentation site, or a static site generator like Hugo or Jekyll — you know the pain. Most tools either require you to install software, sign up for an account, or upload your private documents to some stranger’s server.

Not this one.


What Is This Tool?

This is a free, single-file DOCX to Markdown converter that runs entirely in your web browser. There’s nothing to install and nothing to sign up for. You download one small HTML file, open it in Chrome, Firefox, Safari, or Edge, and it works. It was created by Claude Cowork, the desktop version of Claude.

Here’s what makes it different:

  • 100% free — no subscriptions, no paywalls, no “premium” tiers
  • Works offline after the first load — the conversion happens on your device
  • Your files never leave your computer — no server uploads, no privacy risk
  • No installation required — just open the HTML file in any modern browser
  • Works on Windows, Mac, and Linux

How to Convert DOCX to Markdown

  1. Download the free converter (link below)
  2. Open the file in any web browser — just double-click it
  3. Drag and drop your .docx file onto the page, or click to browse
  4. Your Markdown appears instantly in the preview window
  5. Copy to clipboard or download as a .md file

That’s it. The whole process takes about five seconds. It is a simple HTML file, totally secure.


What Gets Converted?

The converter handles all the common Word formatting you’d expect:

  • Headings (H1 through H6)
  • Bold and italic text
  • Ordered and unordered lists
  • Hyperlinks
  • Tables
  • Code blocks and inline code
  • Blockquotes
  • Horizontal rules

The output is clean, readable Markdown that works with any Markdown renderer — GitHub, VS Code, Obsidian, Notion, Jekyll, Hugo, MkDocs, and more.


Who Is This For?

Writers and Bloggers

If you draft in Microsoft Word and publish to a platform that uses Markdown (like Ghost, a static site generator, or a developer docs platform), this tool eliminates the copy-paste mess.

Developers

Converting legacy .docx documentation into Markdown for a docs site or README? This handles the tedious reformatting automatically.

Students and Researchers

Working with notes in Word but want them in a Markdown-based tool like Obsidian or Notion? Drop, convert, done.

Anyone Who Values Privacy

Unlike web-based converters, your document is never uploaded anywhere. The conversion happens entirely inside your browser using JavaScript. Your confidential documents stay confidential.


Why Markdown?

Markdown is a lightweight text format that’s become the standard for:

  • README files on GitHub and GitLab
  • Documentation sites (Read the Docs, MkDocs, Docusaurus)
  • Static site generators (Jekyll, Hugo, Eleventy, Astro)
  • Note-taking apps (Obsidian, Notion, Bear, Typora)
  • Blog platforms (Ghost, Hashnode, Dev.to)

If you’re writing in Word and publishing anywhere in the developer or technical writing world, you need a way to convert DOCX to Markdown — and this is the easiest one we’ve found.


How It Works (For the Curious)

The tool is built on Mammoth.js, an excellent open-source library for converting .docx files to HTML. The HTML is then passed through a custom conversion layer that maps HTML elements to their Markdown equivalents.

The entire tool is a single HTML file — under 10KB of code. No frameworks, no dependencies to install, no build step. You can open it, inspect it, and verify exactly what it does.


Download the Free DOCX to Markdown Converter

👉 Download docx-to-md.html (a zip file you open on your computer)

Just save the file somewhere easy to find — your Desktop or Downloads folder works great. Open it in your browser whenever you need it.


Frequently Asked Questions

Is it really free? Yes, completely. No hidden costs, no sign-up, no trial period.

Does it work without internet? After the very first time you open it (when it loads one small library from a CDN), it will work offline. You can even save it to a USB drive and use it anywhere.

Is my document safe? Yes. Your file is never sent anywhere. All processing happens locally in your browser. The tool has no server, no analytics, and no way to see your data.

What file types are supported? Only .docx (Microsoft Word Open XML format). Older .doc files are not supported — you can re-save them as .docx in Word first.

What if my formatting looks off? Complex Word documents with custom styles, embedded images, or heavy formatting may not convert perfectly — no tool does that flawlessly. For most standard documents the output is clean and accurate.

Can I use this for commercial documents? Yes. There are no restrictions on use.


Have a feature request or found a bug? Leave a comment below.

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