Markdown Previewer
Preview Markdown as HTML
What Is This Tool?
The Markdown Previewer renders Markdown as HTML live as you type, using a small built-in converter with no external libraries. The raw input is fully HTML-escaped before any Markdown formatting is applied, so pasted HTML or script tags are always shown as inert text rather than executed — nothing you write can run in the page.
How to Use
Type or paste Markdown into the left panel.
The rendered preview updates automatically on the right.
Use Copy HTML to grab the rendered markup.
Use Download HTML to save a standalone HTML file.
Features
- Headings, bold, italic, and inline code
- Fenced code blocks, blockquotes, and horizontal rules
- Ordered and unordered lists
- Links (unsafe schemes like javascript: are rendered as plain text)
- Simple pipe tables
- Input is fully HTML-escaped before rendering — no injected scripts
Examples
Markdown input:
# Hello World This is **bold** and this is *italic*. - First item - Second item [Visit JsonCherry](https://jsoncherry.com)
Renders as a heading, a paragraph with bold/italic text, a bullet list, and a link.
Common Use Cases
- Previewing a README before committing it
- Drafting a blog post or documentation page in Markdown
- Checking how a GitHub issue or comment will render
- Quickly converting Markdown notes into a shareable HTML file
Frequently Asked Questions
Is my Markdown uploaded anywhere?
No. Rendering happens entirely in your browser with a small built-in converter. Nothing is sent to a server.
Is it safe to paste HTML or script tags into the input?
Yes. The raw input is HTML-escaped first, so any HTML or script tags you paste are shown as plain, inert text rather than being executed.
What Markdown syntax is supported?
Headings, bold, italic, inline code, fenced code blocks, unordered and ordered lists, links, blockquotes, horizontal rules, and simple pipe tables.
Why did my link turn into plain text?
Links are only rendered as clickable HTML if the URL starts with http://, https://, /, or #. Other schemes such as javascript: are shown as plain text for safety.
Can I download the rendered result?
Yes, click Download HTML to save a standalone document.html file containing your rendered Markdown as a complete HTML page.
Does it support tables and nested lists?
Simple pipe tables are supported. Deeply nested lists and advanced GitHub-flavored Markdown extensions are not implemented.