Why convert between Markdown and HTML
Markdown is great for writing; HTML is what browsers render. Moving between them helps when drafting docs, cleaning CMS paste, or preparing content for static sites—without leaving the browser.
Markdown ↔ HTML Converter
Convert Markdown to HTML or HTML back to Markdown, with a live preview so you can check formatting before you copy.
How it works
- 1
Paste your input into the editor.
- 2
Choose format / mode options if available.
- 3
Copy the transformed output (it usually updates as you edit).
Why use this tool
- Runs entirely in your browser — nothing is uploaded to a server.
- 100% free, no sign-up, no limits.
- Works in any modern browser — no app install, no extension, no account.
How to use Markdown ↔ HTML Converter
Paste into Markdown ↔ HTML Converter, tweak options, and copy the output. Formatting and conversion run in the browser for this tool.
Tips for better results
Keep a backup of original input before bulk transforms. Invalid input should show an error instead of silent corruption.
Privacy and offline-friendly processing
Whenever possible, Markdown ↔ HTML Converter processes your data locally with JavaScript in this page. That means drafts, secrets, and unfinished work stay on your device by default. Prefer this workflow when you do not want to upload sensitive text, tokens, passwords, or files to a third-party service.
Frequently asked questions
Is HTML→Markdown a perfect round trip?
No. Common tags convert well, but complex or custom HTML may simplify. Treat reverse conversion as a starting point.
Does the preview execute scripts?
Preview is for checking structure and formatting. Prefer pasting trusted content only.
Is my data uploaded when I use this tool?
For most FlyUtils tools, no. Processing happens in your browser with JavaScript. If a tool ever needs a server, that will be stated clearly on the page.
Is Markdown ↔ HTML Converter free to use?
Yes. Markdown ↔ HTML Converter is free, with no sign-up and no artificial usage caps for normal personal and work use.
Does Markdown ↔ HTML Converter work on mobile?
Yes. The page is mobile-first, so you can paste input, tweak options, and copy results from a phone or tablet.