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.

What does a Markdown to HTML converter do?

A Markdown to HTML converter transforms .md text into clean, ready-to-publish HTML — headings, links, lists, tables, and code blocks become valid markup you can paste into a website, email, or CMS. This tool renders the result live and gives you the HTML with one click.

Paste or upload your Markdown, preview the rendering, then copy or download the HTML. It supports GitHub Flavored Markdown (tables, task lists, strikethrough, autolinks) and renders Mermaid code blocks as inline SVG diagrams. All parsing happens locally in your browser — nothing is uploaded.

FAQ

Common questions

Is this tool free?

Yes. The Markdown to HTML converter is completely free with no usage limits, no account, no watermarks, and 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.

How to Convert Markdown to HTML
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Want native rendering on Mac?

MacMD Viewer renders Markdown files natively on Mac with Mermaid diagrams, syntax highlighting, QuickLook, and live reload.

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I like MacMD Viewer for previewing Markdown files I put up on GitHub.