Markdown to HTML
Professional Markdown to HTML
Markdown
HTML output will appear here
Markdown to HTML
Professional Markdown to HTML
Features
- Convert standard markdown to HTML: headings, bold/italic/strikethrough, lists, links, images, code blocks, blockquotes, horizontal rules
- Raw HTML in the source is escaped (script tags / event handlers become visible text, not active markup) — preview is safe
- Side-by-side editor and preview, or HTML-source view
- Regex-based converter — handles common markdown but not nested lists or advanced GFM features (tables, footnotes, task lists)
- For full CommonMark / GFM compliance, use markdown-it or marked in your code
How to use
- Enter your input data in the provided field.
- Configure any options as needed.
- View the results instantly and copy or download the output.
Tips & Best Practices
- Pasted HTML is escaped — `<script>alert(1)</script>` shows as visible text, not executable code. This keeps the preview safe from XSS.
- For tables, footnotes, definition lists, and other GitHub-Flavored Markdown features, this tool falls short. Use markdown-it for those.
- Code blocks add a `language-XXX` class on `<code>`; pair with a highlighting library (Prism / highlight.js) when you render the output.
- Bold + italic combined (`***text***`) maps to `<strong><em>text</em></strong>`.
- Headings use ATX style (`#` to `######`); setext (underline `=====` / `-----`) is not supported.
FAQ
Is this tool free to use?
Yes, completely free with no registration, no limits, and no hidden costs.
Is my data private?
All processing happens in your browser. No data is ever sent to any server or third party.
Does it work offline?
Once loaded, the tool works entirely offline. All processing is done client-side with JavaScript.
Which browsers are supported?
Works in Chrome, Firefox, Safari, Edge, and all modern browsers on desktop and mobile.
Can I use the results commercially?
Yes, all output is yours to use freely in any personal or commercial project without restrictions.