DOCX → Clean HTML/Markdown (Private, In-Browser)

Convert Microsoft Word documents into clean, semantic HTML or Markdown without uploading your files. This tool uses Mammoth.js and Turndown to preserve headings, lists, links, and images while removing Word-specific noise. Perfect for blogs, documentation, static sites, and CMS imports.

Key Features

Clean HTML Output

Generates semantic HTML that preserves structure—headings, paragraphs, lists, links, images—while stripping inline styles and Word cruft.

Markdown (GFM)

Exports GitHub-flavored Markdown with fenced code blocks and tables, ready for static site generators and developer workflows.

Advanced Controls

Custom Mammoth style map, link sanitization (target=_blank, rel=noopener), image handling (inline Base64 or object URLs), and whitespace cleanup.

Smart Image Handling

Keep images inline as Base64 for a single self-contained HTML file, or use fast object URLs. Optional max-width style for responsive content.

Copy & Download

One-click copy for HTML and Markdown with preserved line breaks, plus direct downloads for .html and .md files.

Privacy First

Everything runs in your browser. No uploads, no servers, no tracking—your documents never leave your device.

How to Use the Tool

  1. Upload DOCX: Drag and drop or click to select your .docx file
  2. Convert: Click “Convert” to generate HTML and Markdown
  3. Adjust Options:
    • Enable GFM tables and fenced code blocks
    • Set image handling (Base64 or object URLs) and optional max width
    • Sanitize links and strip inline styles/classes
    • Add custom Mammoth style map rules
  4. Preview & Copy: View HTML/MD previews; use “Copy” to place formatted code on your clipboard
  5. Download: Save as .html or .md for immediate use

Supported Operations

Structure Preservation

Retains headings (H1–H6), paragraphs, hyperlinks, bold/italic, ordered/unordered lists, block quotes, and tables (to GFM in Markdown).

  • Maps Word “Title/Subtitle” styles to H1/H2 (configurable)
  • Optional underline mapping and list normalization
  • Optional whitespace collapse and empty paragraph removal

Markdown Export

GFM Tables: Converts Word tables to Markdown tables compatible with GitHub and many static site tools.

Code Blocks: Emits fenced code blocks for clarity and compatibility.

Technical Details

This tool leverages modern web technologies:

  • Mammoth.js: High-quality DOCX to HTML conversion and style mapping
  • Turndown + GFM: HTML to Markdown with GitHub-flavored extensions
  • Client-Side Only: Runs entirely in the browser for speed and privacy

Use Cases

CMS & Blogging

Paste clean HTML/Markdown into your CMS without Word’s extra markup or inline styles.

Developer Docs

Convert stakeholder Word docs to Markdown for Git repositories and static site pipelines.

Content Migration

Normalize content when moving from legacy systems; keep structure, drop noise.

Knowledge Bases

Turn internal Word documents into web-ready HTML with consistent semantics.

Privacy & Security

This tool operates with a strict privacy-first approach:

  • No file uploads to external servers
  • All processing occurs in your browser
  • No tracking or analytics
  • Temporary, in-memory processing with automatic cleanup

Browser Compatibility

Works with all modern browsers including Chrome, Firefox, Safari, and Edge. JavaScript required.