Free · Find raw HTML and risky links

Markdown Safety Checker

Flag raw HTML, unsafe link schemes, embedded data links, and oversized input before sharing.

  • markdown-it 14 parser
  • Private in your browser
  • Raw HTML stays off

Check Markdown safety

Paste Markdown or open a local .md file. Raw HTML stays off in every preview.

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Add Markdown164 / 120,000 characters
Safe local parsermarkdown-it 14.1.0 · raw HTML disabled
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See the resultReady when you are
Your result will appear here

Nothing is uploaded, and links are never opened by the checker.

Three simple steps

How to use it

  1. Paste the untrusted Markdown.
  2. Review every local safety warning.
  3. Use the safe preview with raw HTML off.

Your Markdown stays on this device

markdown-it reads the document inside this browser tab. Bookify does not upload or save it. Raw HTML is shown as text, unsafe link types stay unclickable, and the checker never visits a link.