Markdown Preview

What is Markdown Preview?

Markdown is a lightweight markup syntax designed to be readable as plain text but render to clean HTML. It powers most README files, static-site generators, technical blogs, and chat platforms. A preview tool lets you check exactly how your prose will look before you publish it.

What this tool does

• Side-by-side rendering — type on the left, see the result on the right.
• GitHub-flavoured Markdown — tables, task lists, strikethrough, fenced code blocks.
• Soft line breaks — toggle to honour single newlines (handy for prose).
• HTML sanitisation — output is run through DOMPurify so pasted Markdown can't smuggle in scripts.
• Export — copy or download as .md or .html.

Tips

• For task lists, write - [ ] todo and - [x] done.
• Fence code blocks with triple backticks and a language tag — your build system can highlight them later.
• The renderer ignores raw HTML <script> tags by design; this tool is safe to use on untrusted input.

Rendering happens entirely in your browser — drafts and notes never leave your machine.