Free Online Tool

Convert Markdown to HTML

Paste or upload a .md file, preview the rendered output, and copy or download clean HTML. Supports GFM tables, code blocks, and Mermaid diagrams.

Your files never leave your browser. All processing happens locally.
FAQ

Common questions

Is this tool free?

Yes, completely free with no limits on usage. No account required, no watermarks, no hidden fees.

Is my data private?

Your files never leave your browser. All Markdown parsing and HTML generation happen locally on your device. Nothing is uploaded to any server.

Does it support GitHub Flavored Markdown?

Yes. Tables, task lists, strikethrough, autolinks, and all standard GFM extensions are fully supported.

Does it support Mermaid diagrams?

Yes. Mermaid code blocks are rendered as SVG diagrams in the preview and included in the HTML output.

How does this compare to online Markdown editors?

Most online editors focus on writing Markdown, not converting it. This tool is purpose-built for conversion: paste your Markdown, get clean HTML with one click. No account, no saving, no distractions.

Want native rendering on Mac?

MacMD Viewer renders Markdown files beautifully on your desktop — with Mermaid diagrams, syntax highlighting, QuickLook, and live reload.

See featuresBuy MacMD Viewer — $19.99