Markdown to HTML
Paste your Markdown and get clean, semantic HTML instantly — toggle GitHub-flavored Markdown and a full-document wrapper, then copy or download the result.
Runs entirely in your browser — files never leave your device.
Pick a theme above to color the preview, the new-window preview, and the “Full document” output. With “Full document” off, Copy and Download always produce a bare, theme-free HTML fragment — clean markup meant for pasting into another page’s own template.
How it works
- 01Paste or upload your Markdown, or click Sample to load a realistic example.
- 02Toggle GFM to control whether tables, strikethrough, and task lists are parsed.
- 03Toggle "Full document" to wrap the output in a complete <!doctype html> page with a minimal default stylesheet.
- 04Pick a theme to color the preview, the full-document output, and the new-window preview.
- 05Click Preview to see the rendered result in-page, or "Open in new window" to preview it in its own tab.
- 06Copy or download the raw HTML directly.
Frequently asked questions
Is this Markdown to HTML converter free?
Yes, with no limits or account required. Conversion runs client-side using the marked library, so there's no per-request server cost.
Does my Markdown get sent to a server?
No. Everything — parsing, sanitizing, and rendering — happens in your browser's JavaScript engine. The text you paste never leaves your device (unless you use "Open from URL" to fetch a remote file, which is a direct browser request, not a server relay).
What does the "GFM" toggle do?
GitHub Flavored Markdown adds tables, strikethrough, autolinks, and task lists on top of standard Markdown. Turning it off parses only the original CommonMark-style syntax.
What's the difference between the plain HTML and the full-document output?
Plain output is just the HTML fragment for the content (for pasting into an existing page's template). The full-document option wraps that fragment in a complete, standalone HTML file with a doctype, meta tags, and a minimal readable stylesheet, so it looks reasonable opened directly in a browser.
Is the output HTML sanitized?
Yes. Every output pass goes through DOMPurify before it's shown or downloaded, which strips scripts and dangerous attributes even if your Markdown contains raw HTML.
Can I use this HTML directly in my website's CMS?
Yes — copy the plain (non full-document) output and paste it into any HTML-capable content field; it's clean, semantic markup with no inline styles or extra wrapper elements.
What does "Open in new window" do?
It opens a full standalone HTML document — with your selected theme's colors baked in — in a new browser tab, so you can preview it full-size outside the tool's split-pane layout. It always uses the full-document wrapper, even if the "Full document" checkbox is off, since a bare fragment can't render on its own.
How does the theme picker affect the output?
It colors the in-page preview, the new-window preview, and the "Full document" Copy/Download output. With "Full document" off, Copy and Download always produce a theme-free bare fragment — the theme only shows up where there's a full document to carry the styles.