Markdown to HTML
Convert Markdown to clean, secure HTML instantly with real-time technical previewing.
tune Configuration
Pro Tip: Use triple backticks with language names (e.g., \`\`\`js) for beautiful syntax highlighting.
Security & Performance
Our Markdown engine is engineered for precision. Unlike standard web converters, we prioritize security through mandatory isomorphic-dompurify sanitization and technical fidelity with industrial-grade syntax highlighting powered by highlight.js.
FAQ
Is the conversion secure?
Does it support tables?
Can I use custom CSS?
From Draft to Markup
What converts to what
The conversion is exact and predictable — that's the appeal:
| Markdown | HTML |
|---|---|
| # / ## / ### | h1 / h2 / h3 headings |
| **bold**, *italic* | strong / em |
| - item | ul + li lists |
| [text](url) | a href links |
| ```block``` | pre + code |
| | tables | | Full table markup (GFM) |
Why the output is good for SEO
Markdown can only express semantic structure — headings, lists, emphasis — so the HTML it produces is exactly what search engines parse best: a clean heading hierarchy, real list elements, no div soup. Writers drafting in markdown and converting at publish time accidentally follow on-page best practice better than most visual editors allow. One discipline: keep heading levels hierarchical in the draft (one #, then ##s) and the converted page inherits a correct outline for free.
One warning, and the toolchain
If the markdown comes from users (comments, forum posts), sanitize the converted HTML before rendering — raw HTML passes through markdown converters, which is the classic script injection route. Your own drafts need no such caution. Draft and preview side by side in the markdown editor, go the reverse direction with HTML to Markdown, and tidy converted output for hand-editing in the HTML formatter.