Browser tool
Convert Markdown into Reviewable HTML
Convert Markdown in your browser. Safe mode sanitizes copied and downloaded HTML; raw output can contain executable markup.
Markdown
Write, paste, or drop a .md file.
Output
Review the sanitized preview or inspect the selected HTML source.
Conversion options
Quick instructions
- 1
Paste or draft Markdown
Bring in notes from your editor or start typing from scratch. The editor highlights syntax for headings, lists, code blocks, and tables.
- 2
Toggle preview & sanitisation
Safe mode sanitizes both the preview and exported output. Turning it off leaves the export raw, while the preview remains sanitized.
- 3
Review the HTML output
Scan the preview panel to confirm heading levels, anchor text, and semantic tags. Adjust copy or Markdown until everything reads perfectly.
- 4
Export or download
Copy HTML to the clipboard or download an .html file to drop into your repository, CMS import tool, or email builder.
Examples & tips
Format a tutorial with code fences
Paste Markdown containing ```js``` blocks and confirm that syntax-highlighted HTML stays intact for developer documentation.
Draft marketing emails safely
Write copy in Markdown, inspect the sanitized preview, and check exported HTML against your email provider’s requirements before sending.
Create embed-friendly FAQs
Structure question-and-answer sections with headings and lists, then drop the resulting HTML into your CMS’s FAQ module.
Useful details
- Keep heading levels sequential to maintain accessible structure across docs and blog posts.
- Pair the converter with the SEO Meta Preview to evaluate how your new article will appear in search results.
About this tool
Convert Markdown and review its HTML in a live preview. Safe mode sanitizes the preview and exported HTML with an element and attribute allowlist; it does not guarantee that the result is suitable for every site or email client.
Conversion runs in your browser without sending the Markdown to a conversion service. The tool saves your draft and settings in this browser’s local storage until you clear them. Raw export mode preserves unsanitized output; inspect it before using it elsewhere.
Questions
- Does the converter upload my Markdown?
- Conversion runs in your browser and does not upload the Markdown to a conversion service. The draft and settings are saved in this browser’s local storage until cleared.
- Can I allow raw HTML elements?
- Yes. Allow raw HTML to include it in conversion. With safe mode on, it is filtered in the preview and export. With safe mode off, the export is raw and may contain executable markup; the preview remains sanitized.
- Which Markdown flavour is supported?
- CommonMark with GitHub Flavoured Markdown extensions, including tables, strikethrough, and autolinks.
- Is there a dark mode?
- The converter inherits your 404cache theme preference, so you can work comfortably in light or dark mode.