---
title: "Markdown to HTML Converter With Safe Live Preview"
description: "Convert Markdown to clean HTML in your browser. The output is sanitized, so scripts and event handlers are removed, with a live preview beside the source."
canonical: https://toolsugar.com/tools/markdown-to-html
image: https://toolsugar.com/og.png
---

# Markdown to HTML

This tool converts Markdown to HTML in your browser with the marked library, then sanitizes the result with DOMPurify. Scripts, event handlers and unsafe links are removed, and the live preview is drawn only from that sanitized HTML. Tables and fenced code from GitHub flavored Markdown work. Nothing is uploaded.

Runs on your device

## How it works

1. Paste Markdown into the Markdown box, or open a .md file.
2. Read the sanitized HTML source in the box on the right.
3. Check the rendered Preview below.
4. Press Copy or Download to save document.html.

## Key facts

- **Where it runs**: In your browser tab. The text and files you use are never uploaded.
- **Live result**: The output updates as you type or paste, with no button to press.
- **Flavor**: GitHub flavored Markdown, including tables, task lists and strikethrough.
- **Safety**: The HTML is sanitized with DOMPurify. Script tags, onerror style handlers and javascript: links are removed, and style tags are dropped.

## Common uses

- Turning a README or notes into HTML for a CMS or an email.
- Previewing how Markdown will look before you publish it.
- Getting safe HTML from Markdown written by someone else.

## Questions

### Is my data sent to a server?

No. The conversion runs in your browser with JavaScript, so what you paste or open stays on your device. You can switch off your network after the page loads and it keeps working.

### Is the HTML safe to paste into my site?

It has been cleaned of scripts, event handlers and unsafe URLs, which removes the common injection routes. You should still sanitize on your server if the content comes from untrusted users.

### Why did part of my raw HTML disappear?

Markdown allows inline HTML, but the sanitizer removes anything that could run code, such as script tags and onclick attributes. Safe tags like b, a and img stay.

[Read the Markdown to HTML guide](https://toolsugar.com/blog/how-to-convert-markdown-to-html)

## Related tools

- [HTML to Markdown](https://toolsugar.com/tools/html-to-markdown)
- [JSON Formatter](https://toolsugar.com/tools/json-formatter)
- [SQL Formatter](https://toolsugar.com/tools/sql-formatter)
- [XML to JSON](https://toolsugar.com/tools/xml-to-json)