HTML and Markdown converter tool with live preview and download
Convert Markdown .md files to html
Markdown .md files can be opened in your notepad just as you would your .txt files.
Free Markdown to HTML converter with live preview, instant download, and syntax reference. Convert .md files to HTML in your browser - no signup needed
Markdown syntax reference
Always add a space after the #. Up to six levels supported.
Underscores also work: _italic_ and __bold__
Indent nested items with 2-4 spaces under their parent.
Blockquotes render with a left border. Great for callouts or citations.
Language hints like js, python, css enable syntax highlighting in many viewers.
Reference links keep long URLs out of your prose: define [id]: url below.
Pipes don't need to line up - alignment is controlled by the colon in the separator row.
A blank line between paragraphs creates a new <p>. Single line breaks are ignored.
FAQ
Question What is a Markdown to HTML converter?",Answer "A Markdown to HTML converter transforms plain-text Markdown (.md) files into valid HTML markup. Markdown uses lightweight symbols - such as # for headings and ** for bold - that the converter renders into browser-ready HTML tags like <h1> and <strong>."
Question How do I convert a Markdown file to HTML online?",
Answer "Paste or type your Markdown into the input panel on the left, then click Convert. The HTML preview appears instantly on the right. You can download the result as a standalone .html file using the 'Save as .html' button - no registration or software installation required."
Question Can I convert HTML back to Markdown?",
Answer "Yes. Switch to the 'HTML Markdown' tab, paste your HTML into the input panel, and click Convert. The tool uses the Turndown library to produce clean, readable Markdown output that you can save as a .md file."
Question What Markdown syntax does this converter support?",
Answer "The converter supports the CommonMark specification via the Marked.js library, including headings (# through ######), bold, italic, strikethrough, ordered and unordered lists, nested lists, blockquotes, fenced code blocks with language hints, tables, task lists, horizontal rules, hyperlinks, images, and HTML comments."
Question Is my data saved or sent to a server?",
Answer "No. All conversion happens entirely in your browser using client-side JavaScript. Your Markdown or HTML content is never uploaded to or stored on any server, making the tool safe for sensitive or proprietary content."
Question How do I open a .md file in Notepad?",
Answer "Right-click the .md file in Windows Explorer, choose 'Open with', and select Notepad (or any plain-text editor). Markdown files are plain text, so they open just like .txt files. You can then copy the contents into this converter to preview the formatted output."
Question What is the difference between Markdown and HTML?",
Answer "HTML (HyperText Markup Language) is the standard language browsers use to display web pages, using verbose tags like <h1> and <p> . Markdown is a lightweight shorthand designed to be readable as plain text, using symbols like # and * that map to those same HTML tags. Markdown is faster to write; HTML gives finer control over structure and styling."
Question Can I use this tool on mobile devices?",
Answer "Yes. The Laughing Professor Markdown HTML Converter is fully responsive and works on smartphones and tablets. The tool meets WCAG accessibility standards and includes keyboard navigation support, making it usable across a wide range of devices and assistive technologies."
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