Skip to main content
Convert999
FormatsAll ConvertersCompareUse CasesToolsBlog
Converter
Convert999

Free online file converter supporting 400+ formats. Fast, secure, and private.

Product

  • All Converters
  • Formats
  • Compare
  • Use Cases
  • Tools

Resources

  • About
  • Blog
  • Security
  • Glossary
  • Statistics
  • Changelog
  • Contact

Legal

  • Privacy Policy
  • Terms of Service

© 2026 Convert999. All rights reserved.

Made with for the web

HomeHTML vs MD
.html
.md

HTML vs MD

Compare HyperText Markup Language and Markdown formats — understand the key differences and when to use each

Format Overview

HTML

HyperText Markup Language

HyperText Markup Language (.html) is a document file format.

.htmldocument

MD

Markdown

MD (Markdown) is a lightweight markup language created by John Gruber in 2004. Markdown uses plain text formatting syntax (#, *, -, etc.) that converts to HTML. It's the standard format for README files, documentation, technical writing, and note-taking. Markdown is used by GitHub, GitLab, Stack Overflow, Reddit, Discord, and thousands of other platforms. Various flavors exist including CommonMark, GitHub Flavored Markdown (GFM), and MultiMarkdown.

.mddocument

HTML vs MD: Feature Comparison

FeatureHTMLMD
Full NameHyperText Markup LanguageMarkdown
File Extension.html.md
Categorydocumentdocument
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use HTML vs MD

Use HTML when you need:

  • •Files in HyperText Markup Language format for maximum compatibility
  • •Industry-standard document format support
  • •Wide software and platform compatibility

Use MD when you need:

  • •Files in Markdown format for specific workflows
  • •Optimized document format features
  • •Modern format advantages and smaller file sizes

Convert Between Them

HTML MDMD HTML
Choose Files

or drag and drop files here

Max file size: 2GB

Your files are processed locally in your browser. Nothing is uploaded to any server.

Learn More About These Formats

HTML Converter MD Converter

Frequently Asked Questions

What is the difference between HTML and MD?
HTML (HyperText Markup Language) and MD (Markdown) are both document file formats. HTML files use the .html extension while MD uses .md. They differ in compression, quality, compatibility, and intended use cases.
Can I convert HTML to MD for free?
Yes! Convert999 lets you convert HTML to MD completely free, directly in your browser. No file upload to any server, no registration needed — your files stay private on your device.
Which is better, HTML or MD?
It depends on your use case. HTML (HyperText Markup Language) may be better for certain workflows, while MD (Markdown) excels in others. Consider factors like file size, quality, software compatibility, and your specific needs.
Is it safe to convert files on Convert999?
Absolutely. Convert999 processes all files 100% locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

HTML Converter

Convert from HTML

MD Converter

Convert from MD

File Tools

Compress, resize, merge

Convert to HTML

All sources → HTML

Convert to MD

All sources → MD

Format Statistics

Trends & data 2025

More Format Comparisons

JPGvsPNGPNGvsWEBPJPGvsWEBPSVGvsPNGHEICvsJPGBMPvsJPGTIFFvsJPGGIFvsPNG