Convert Markdown to HTML with live preview.
Our free Markdown to HTML Converter lets you write Markdown and instantly see the rendered HTML output side by side. Whether you're a developer, blogger, or technical writer, this tool eliminates the guesswork from Markdown formatting and gives you clean, ready-to-use HTML code in seconds.
Markdown is a lightweight markup language designed to be easy to read and write in plain text. It uses simple symbols like asterisks, hashes, and brackets to define formatting. When you convert Markdown to HTML, those symbols are transformed into proper HTML tags — headings become <h1>–<h6>, bold text becomes <strong>, links become <a> tags, and so on.
This converter uses the popular marked.js library with GitHub Flavored Markdown (GFM) support, which means it handles tables, fenced code blocks, strikethrough, and task lists — all the extras you'd expect from modern Markdown rendering.
The live preview updates as you type, so you can see exactly how your content will look in a browser without switching between tools or running a build process.
Getting started is straightforward. Just paste or type your Markdown in the left panel and watch the preview update on the right in real time.
When writing Markdown for HTML output, keep your structure clean. Use a single # for your main heading and ## for subsections — this maps directly to proper semantic HTML heading hierarchy, which is important for both readability and SEO.
For code blocks, always use triple backticks with a language identifier (e.g., ```javascript) rather than indented code. This produces a <pre><code class="language-javascript"> block that works seamlessly with syntax highlighting libraries like Prism.js or highlight.js.
If you're pasting the output into a CMS or email builder, check that the tool doesn't strip certain tags. Some platforms sanitize HTML and remove elements like <pre> or <table>. In those cases, simplify your Markdown to avoid complex structures.
Conversion runs in your browser. Your Markdown content never leaves your device.
The converter supports standard CommonMark syntax: headings (#), bold (**text**), italic (*text*), links ([text](url)), images (), code blocks (```), inline code (`code`), blockquotes (>), ordered and unordered lists, horizontal rules (---), and tables.
Yes. Standard Markdown allows raw HTML to be mixed in. HTML tags in your Markdown will be passed through to the output. This is useful for elements Markdown does not support natively, like colored text or custom div containers.
This converter outputs standard HTML with code blocks wrapped in pre and code tags. Syntax highlighting requires a separate library like Prism.js or highlight.js to be added to the page where you use the output.
Use pipes and hyphens: | Header 1 | Header 2 | on the first line, | --- | --- | on the second line (the separator), then | Cell 1 | Cell 2 | for each row. Align columns by adding colons to the separator: | :--- | for left, | ---: | for right, | :---: | for center.
This tool converts Markdown to HTML only. For the reverse (HTML to Markdown), you would need a separate tool. If you need to round-trip content, keep your original Markdown source and regenerate the HTML whenever needed.