Free Toolkit

Markdown to HTMLConvert Markdown syntax to clean HTML markup.

Markdown to HTML illustration
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Markdown to HTML

Convert Markdown syntax to clean HTML markup.

How to Use
1

Paste Markdown

Paste your Markdown-formatted text.

2

Auto-Convert

Markdown is instantly converted to HTML markup.

3

Copy HTML

Copy the generated HTML code.

What Is Markdown to HTML?

The Markdown to HTML converter transforms Markdown syntax into clean, standards-compliant HTML markup. It supports all standard Markdown features including headings (# to ######), bold (**text**), italic (*text*), links, images, code blocks, blockquotes, ordered and unordered lists, horizontal rules, and tables. The converter uses the marked library, a widely-used and spec-compliant Markdown parser that handles edge cases and produces clean output.

Why Use Our Markdown to HTML?

  • Convert Markdown documents to HTML for web publishing
  • Generate HTML from Markdown README files
  • Preview how Markdown will render as HTML
  • Migrate content from Markdown to HTML format

Common Use Cases

Web Publishing

Convert blog posts and articles written in Markdown to HTML for web pages.

Documentation

Transform Markdown documentation into HTML for websites.

Email Creation

Write content in Markdown and convert to HTML for email campaigns.

CMS Migration

Convert Markdown content to HTML when migrating between content management systems.

Technical Guide

The converter uses the marked library, which implements the CommonMark specification with extensions for GFM (GitHub Flavored Markdown). The parser tokenizes Markdown input into an abstract syntax tree, then renders it as HTML. The synchronous rendering mode (marked.parse with async: false) provides instant conversion. Supported syntax includes ATX headings, setext headings, emphasis, strong emphasis, inline code, fenced and indented code blocks, blockquotes, ordered and unordered lists, links, images, horizontal rules, HTML passthrough, and GFM tables. The output is clean, semantic HTML without unnecessary wrapper elements.

Tips & Best Practices

  • 1
    The converter supports GFM (GitHub Flavored Markdown) tables
  • 2
    Fenced code blocks with language hints are supported
  • 3
    Inline HTML in Markdown passes through to the output
  • 4
    Use the Markdown Preview tool for a rendered visual preview

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Frequently Asked Questions

QWhich Markdown specification is used?
The converter uses marked, which supports CommonMark and GitHub Flavored Markdown (GFM) extensions.
QAre tables supported?
Yes, GFM-style pipe tables with alignment are fully supported.
QDoes it support syntax highlighting in code blocks?
The HTML output includes language classes on code blocks, but syntax highlighting requires additional CSS/JS.
QCan I use HTML inside my Markdown?
Yes, inline HTML is preserved and passed through to the output.
QIs the output sanitized?
The output is not HTML-sanitized. If the input contains scripts or dangerous HTML, they will appear in the output.

About Markdown to HTML

Markdown to HTML is a free online tool from FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration required. No ads. Just fast, reliable tools.