A Markdown preview is a live, side-by-side renderer that converts Markdown source into HTML as you type, so you can see exactly how your README, doc, or blog post will look before you publish. This tool supports full GitHub Flavored Markdown - tables, fenced code blocks, task lists, strikethrough, and autolinks - and runs entirely in your browser, with no signup and nothing sent to a server.
Markdown is a lightweight plain-text formatting language created by John Gruber in 2004. It uses simple symbols like #, *, and `` ` `` to mark up headings, bold, italics, links, lists, and code, and converts cleanly to HTML. It is the standard format for README files, GitHub issues, blog posts, and AI chat output.
GitHub Flavored Markdown (GFM) is the dialect of Markdown used by GitHub. On top of standard Markdown it adds tables, fenced code blocks with language tags, task lists ([ ] and [x]), strikethrough with ~~tildes~~, autolinks, and emoji shortcodes. This preview tool renders all of those.
No. The Markdown preview runs entirely in your browser. Nothing you type is uploaded, logged, or stored, which makes the tool safe for drafting confidential README files, internal docs, or unpublished blog posts.
Yes. Use Copy as HTML to copy the rendered HTML markup to your clipboard, Copy as Rich Text to paste formatted output into Google Docs or Notion, or Download .html to save a complete standalone HTML file. You can also download the original Markdown source as a .md file.
Yes. Fenced code blocks with a language tag (for example ```js or ```python) render with a language badge and a monospace code block. The output HTML keeps the language as a CSS class on the <code> element so you can style it with any highlight theme on export.
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