Markdown Previewer
Write Markdown and see clean, sanitised HTML.
Input
This tool runs entirely in your browser. The data you paste or load is never uploaded.
Result
Enter your input, then run the tool.
About this tool
Renders GitHub-flavoured Markdown as you type using a maintained parser, then sanitises the HTML before display so embedded scripts and event handlers cannot run. Copy the rendered HTML or the source with one click.
How to use it
- Write or paste Markdown on the left.
- Check the preview on the right; raw HTML is sanitised.
- Copy the generated HTML when it looks right.
Frequently asked questions
Is the preview safe for untrusted Markdown?
Yes. The rendered HTML passes through DOMPurify, which removes scripts, iframes and event handlers, so the preview cannot execute injected code.
Which Markdown features are supported?
CommonMark plus tables, strikethrough, task lists and fenced code blocks. Syntax highlighting is not applied, keeping the page small.
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