Free Online Markdown to HTML Converter with Live Preview
Markdown is the most popular lightweight markup language for writing content — used in GitHub READMEs, documentation sites, technical blogs, and CMS platforms worldwide. But many publishing systems, email clients, and web templates require HTML, not Markdown. Our free Markdown to HTML converter transforms your Markdown into clean, semantic HTML as you type, with a live rendered preview so you can verify every element before copying or downloading.
The converter supports the full CommonMark specification plus GitHub Flavored Markdown extensions including tables, strikethrough, task lists, and auto-linked URLs. Switch between raw HTML source and a live preview, then copy the output to your clipboard or download it as a ready-to-use .html file. Everything runs in your browser with no server processing. This makes it easy to preview README content, draft blog posts, or prepare documentation before publishing to any platform that requires HTML input.
How to Use the Markdown to HTML Converter
Type or paste your Markdown into the input editor on the left. The HTML output generates instantly on the right as you type. Toggle between the raw HTML source view and a live rendered preview to see exactly how the content will look in a browser. When you are satisfied with the result, click Copy to send the HTML to your clipboard, or click Download .html to save it as a file. The converter handles headings, bold and italic emphasis, lists, links, images, fenced code blocks, blockquotes, tables, and more without any configuration.
Why Convert Markdown to HTML
Static site generators like Hugo, Jekyll, and Gatsby convert Markdown during the build process, but you sometimes need to preview or extract HTML manually. Email newsletters do not support Markdown — if you write in Markdown, you need HTML for platforms like Mailchimp or ConvertKit. Many CMS platforms do not natively support Markdown; converting to HTML and downloading the file lets you paste or upload content anywhere with confidence. This tool bridges the gap between writing in Markdown and publishing in HTML-based systems.
Who Uses a Markdown to HTML Converter?
- Technical writers preview Markdown documentation before publishing to wikis and knowledge bases.
- Bloggers convert Markdown drafts to HTML for CMS platforms that do not support Markdown natively.
- Email marketers transform Markdown newsletters into HTML for Mailchimp, ConvertKit, and similar platforms.
- Developers extract HTML from README files for embedding in project websites and portfolios.
- Students learn the relationship between Markdown syntax and its HTML output.
- Content managers migrate Markdown content to HTML-based CMS platforms like WordPress.
- Technical support teams convert internal Markdown docs to HTML for customer-facing help centers.
Key Features
- Real-time conversion as you type
- Live rendered preview alongside raw HTML output
- CommonMark plus GitHub Flavored Markdown (GFM) support
- Tables, strikethrough, task lists, and auto-linked URLs
- Copy to clipboard or download as .html file
- 100% browser-based — content never leaves your device
Tips for Markdown to HTML Conversion
The output is clean semantic HTML without inline styles or CSS classes — you control styling with your own stylesheet. Code blocks include language classes (e.g., class="language-javascript") that work with Prism.js or Highlight.js for syntax highlighting. Always preview complex tables and nested lists in the live preview before downloading. For email HTML, you will likely need to add inline styles after conversion since email clients ignore external stylesheets. Test the downloaded HTML in your target browser or email client before publishing.
Frequently Asked Questions
Which Markdown specification does this tool follow?
The tool uses Marked.js, which follows CommonMark with GitHub Flavored Markdown extensions: tables, strikethrough, task lists, and auto-linked URLs. The live preview renders the output in real time so you can verify every element.
Does the converter add CSS styling to the HTML?
No. The output is clean, semantic HTML without inline styles or CSS classes. You control styling with your own stylesheet. The downloaded .html file contains only the converted markup.
Can I download the converted HTML?
Yes. Click the Download .html button to save the converted output as a file. You can also copy the HTML to your clipboard with the Copy button for pasting into CMS editors or email builders.
Can I convert HTML back to Markdown?
Yes — use our HTML to Markdown Converter tool for the reverse conversion. Together they support bidirectional Markdown and HTML transformation.
Does it support syntax highlighting in code blocks?
The raw HTML output includes language classes (e.g., class="language-javascript") compatible with client-side highlighters like Prism.js and Highlight.js. The live preview renders code blocks with basic monospace styling.
Is my content uploaded to a server?
No. Conversion happens entirely in your browser. Your Markdown content stays on your device and is never transmitted anywhere.
Does it support GitHub task lists?
Yes. Markdown task list syntax (- [ ] and - [x]) is converted to HTML checkbox input elements within list items. The live preview renders them as interactive checkboxes for visual verification.