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Convert Markdown to HTML with syntax highlighting support
Convert Markdown to HTML instantly with our free online Markdown to HTML converter. This tool helps developers and content creators transform Markdown syntax into HTML code for websites and documentation. Simply paste your Markdown and get HTML output in real-time.
Convert Markdown to HTML using GitHub Flavored Markdown (GFM) syntax. Supports headers, lists, code blocks, tables, and more.
Markdown to HTML conversion transforms lightweight Markdown syntax into formatted HTML. Markdown's simple syntax (# headers, **bold**, [links]) becomes proper HTML elements, enabling content written in Markdown to be displayed in web browsers.
The converter parses Markdown syntax patterns and outputs corresponding HTML. Headers (#) become <h1>-<h6>, emphasis (*/**) becomes <em>/<strong>, links become <a>, code blocks become <pre><code>, and lists become <ul>/<ol>. GFM (GitHub Flavored Markdown) adds tables, task lists, and autolinks.
Markdown parsing follows CommonMark specification (standardized) or GFM (GitHub's extensions). Key features: ATX headers (# Header), Setext headers (underlines), inline formatting, link references, fenced code blocks with language hints, and block quotes. HTML sanitization is crucial for user content.
Convert Markdown posts to HTML for display.
# My Post\n\nHello **world** → <h1>My Post</h1><p>Hello <strong>world</strong></p>Generate HTML docs from Markdown source files.
Display GitHub-style README files on websites.
Allow Markdown formatting in user comments.
Write emails in Markdown, send as HTML.
import { marked } from 'marked';
import DOMPurify from 'dompurify';
const markdown = `
# Hello World
This is **bold** and *italic*.
\`\`\`javascript
console.log('Hello');
\`\`\`
`;
// Convert to HTML
const html = marked.parse(markdown);
// ALWAYS sanitize user content!
const safeHtml = DOMPurify.sanitize(html);marked is fast and supports GFM. Always sanitize with DOMPurify for user content.
import markdown
import bleach # for sanitization
md_text = """
# Hello World
This is **bold** and *italic*.
```python
print('Hello')
```
"""
# Convert with extensions
html = markdown.markdown(md_text, extensions=[
'fenced_code',
'tables',
'toc'
])
# Sanitize user content
safe_html = bleach.clean(html, tags=['h1','p','strong','em','code','pre'])Python markdown library supports extensions. Use bleach to sanitize untrusted content.
Use Markdown to HTML for blogs, documentation, README displays, comment systems, or anywhere you want users to write formatted content without HTML knowledge.
CommonMark for standard, portable Markdown. GFM (GitHub Flavored Markdown) for tables, task lists, strikethrough, and autolinks. Most modern parsers support both.