Markdown Previewer
Write Markdown on the left, see rendered HTML on the right — live. Supports the core Markdown syntax.
Write Markdown and see the rendered HTML live, side by side. Headings, bold and italic, links and images, lists, blockquotes, tables and fenced code blocks all render as you type — then copy the generated HTML straight into your site or CMS.
How to preview Markdown as HTML
Type or paste Markdown into the editor and the rendered preview updates live. Headings, emphasis, links, images, lists, tables, blockquotes, and fenced code blocks are supported.
Use Copy HTML when you need the rendered markup for a blog, documentation site, CMS, or email template. The preview is generated locally in your browser.
Example
Input:
# Release notes
- **Fixed** the `--watch` flag
- See [the docs](https://example.com/docs)Output HTML:
<h1>Release notes</h1>
<ul><li><strong>Fixed</strong> the <code>--watch</code> flag</li><li>See <a href="https://example.com/docs" target="_blank" rel="noopener">the docs</a></li></ul>A link like [click me](javascript:steal) is rendered with href="#blocked": javascript:, data: and vbscript: URLs are never output.
How to use the Markdown Previewer
- Type or paste Markdown into the left panel.
- The preview updates live on the right.
- Use Copy HTML when you need the rendered markup.
Frequently asked questions
How do I preview Markdown online?
Paste your Markdown above — the rendered HTML appears instantly on the right, with no signup and nothing uploaded.
Can I get the HTML from Markdown?
Yes — click Copy HTML to copy the rendered markup, ready to paste into a blog, docs site or email template.
What Markdown syntax is supported?
Headings, bold, italic, strikethrough, inline and fenced code, links, images, ordered and unordered lists, blockquotes, horizontal rules and tables.
Does it support GitHub Flavored Markdown?
It supports the core GFM features including fenced code blocks and tables. Exotic extensions like task lists are not rendered.
Fun facts about Markdown Previewer
- Markdown was created by John Gruber in 2004 with the goal of being 'readable as plain text' — unlike HTML, which is full of angle brackets and tags.
- GitHub Flavored Markdown (GFM) added features like tables, task lists, and syntax-highlighted code blocks — it's now the most widely used Markdown dialect.
- The original Markdown implementation was a Perl script that converted plain text to valid XHTML.
- Markdown is used by GitHub (README files), Reddit (comments), Discord (messages), Stack Overflow (posts), and many documentation platforms.
- There are over 50 different Markdown parsers, and they don't all agree on syntax — this led to the CommonMark project (2014) to create an unambiguous specification.