Developer Tools
Markdown to HTML
Convert GitHub-Flavored Markdown to HTML with live preview. Tables, code blocks, task lists, all in your browser.
Markdown to HTML
Convert your markdown to HTML in real time.
Features
- GitHub-flavored markdown (GFM)
- Live preview
- Copy clean HTML output
- Code blocks with language tags
Example code
function greet(name) {
return `Hello, ${name}!`;
}
Tables
| Tool | Volume | Status |
|---|---|---|
| BMI | 2.74M | Live |
| TDEE | 450K | Live |
| GPA | 823K | Live |
"Markdown is the lingua franca of the web." — anonymous
Markdown, fast
Three views: Markdown source, live HTML preview, and raw HTML output you can copy. Powered by the same Markdown engine used by GitHub. Works offline once loaded.
Frequently Asked Questions
What flavor of Markdown does this support?▾
GitHub-Flavored Markdown (GFM) — including standard Markdown plus tables, task lists, fenced code blocks, autolinks, and strikethrough. We use the marked library, the same parser used by many open-source projects.
Is the HTML output sanitized?▾
We do not sanitize HTML in the output — paste from trusted sources only. If you need to display this HTML on a public site, run it through a sanitizer like DOMPurify before rendering.
Can I convert HTML back to Markdown?▾
Not yet — that's a separate tool (HTML-to-Markdown). We're focused on the more common direction here. Open the converted HTML in a browser inspector to see the structure.
Is my Markdown sent to a server?▾
No. All conversion happens in your browser using the marked library. Your text never leaves your device — safe for unpublished blog posts, internal docs, or sensitive content.
How do I add a code block with syntax highlighting?▾
Use triple backticks with the language: ```js (or ```python, ```ts, etc.). The output HTML will include language classes that work with highlight.js, Prism, or Shiki when you render it elsewhere.