How do I convert Markdown (.md) to HTML?

Paste your Markdown into the box and the HTML appears instantly. Copy the HTML, copy it as rich text for Gmail or Word, or download it as a complete HTML file. It is free and runs in your browser.

Which Markdown features are supported?

Headings, bold, italic, strikethrough, links, images, ordered and bullet lists, task lists, blockquotes, code blocks, horizontal rules and tables. Link and image addresses are limited to http, https, mailto and tel, plus relative links.

Does the HTML include styling?

No. The output is clean HTML without CSS, so it takes on the styles of your blog or CMS. The downloaded file is a minimal HTML page with no stylesheet; the preview tab shows how it looks with basic styling.

Yes. Every tool is free to use, with no account and no credit card. The work runs on your device rather than on our servers, which is what keeps it free to run.

Does it work on mobile?

Yes. It runs in current mobile browsers on iOS and Android, with nothing to install.

🔄

Free Markdown to HTML Converter

Convert Markdown to clean HTML with live preview. Use the source view to copy ready-to-paste HTML for blogs, CMSes, or email templates.

Runs in your browserNo sign-up, no pop-upsNo login requiredFree forever

Works offline once loaded

Paste Markdown on the left; clean HTML appears on the right.

Markdown input

HTML output will appear here…

Common uses

Publish Markdown to a CMSConvert Markdown notes into HTML for pasting into CMSes that only accept HTML.
Build HTML Email ContentConvert Markdown to HTML for transactional emails and newsletters.
Preview README Files LocallyPaste your README.md to see how it will render on GitHub, GitLab, or npm.
Generate Page Content for Static SitesConvert Markdown body content to HTML for hand-built static sites or one-off pages.
Build Documentation HTMLConvert internal Markdown docs to HTML for embedding in apps, help centers, or knowledge bases.

How It Works

The conversion is done entirely in your browser by a hand-written Markdown parser — no third-party library, no server request. The parser walks the source line-by-line, applying block-level rules (headings, lists, tables, fenced code) and then a second pass of inline regex patterns for bold, italic, links, images, and inline code.

1
Block structure parsed first
The parser reads the raw Markdown line by line, identifying block-level constructs: fenced code blocks (with optional language class), ATX headings (# through ######), blockquotes, ordered and unordered lists including GFM task-list checkboxes, GFM tables with column alignment, horizontal rules, and paragraphs that correctly join soft-wrapped continuation lines.
2
Inline patterns applied inside each block
After each block's text is HTML-escaped, a regex chain in parseInline() transforms inline syntax: images and links (with URL scheme whitelisting that strips javascript: and data: hrefs), **bold**, *italic*, ~~strikethrough~~, and inline code — in that precedence order.
3
Live HTML output with preview toggle
The HTML string is recomputed via useMemo on every keystroke, so the right-hand pane updates instantly. A toggle switches between the raw HTML source view and a rendered preview using the browser's own layout engine.
4
Three output options including rich-text copy
You can copy the raw HTML markup, download a complete standalone .html file with DOCTYPE and charset meta tag, or use 'Copy rich text' — which writes both text/html and text/plain MIME types to the clipboard via the Clipboard API's ClipboardItem, so the formatted result pastes directly into Gmail, Google Docs, or Word without extra steps.

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