Markdown to HTML

Convert Markdown with a live preview and safe output.

Markdown to HTML converts CommonMark-style Markdown — headings, lists, tables, code fences, links, images, blockquotes and task lists — into clean HTML, with a live side-by-side preview. Output is escaped by construction, so raw HTML in the source cannot inject scripts into the preview. Conversion runs in the page, so nothing is uploaded.

This tool needs JavaScript, because the work happens on your device rather than on a server. Everything below — how it works, the FAQ and the related tools — is readable without it.

Loading Markdown to HTML…

Runs entirely on your device. No file or text you enter here is uploaded. How to verify it.

How to use Markdown to HTML

Type or paste Markdown on the left.
Watch the rendered preview on the right.
Copy the HTML, or download it as a file.

Questions about Markdown to HTML

Is raw HTML in the Markdown passed through?

No, and that is deliberate. The parser escapes everything that is not a Markdown construct, so a document containing a script tag renders as visible text rather than executing. Passing raw HTML through would make this a cross-site scripting vector every time someone pastes an untrusted README.

Which Markdown flavour does it follow?

CommonMark for the core, plus the widely used GitHub extensions: tables, strikethrough, task lists, autolinks and fenced code blocks with language labels.

Can I convert HTML back to Markdown?

Not here. For stripping HTML down to readable text, use HTML to Text.

Can I paste a whole README file?

Yes. Paste the raw Markdown rather than the rendered page from a repository host, which is already HTML. Files of a few hundred kilobytes convert without a pause, and nothing is uploaded to convert them.

Will the preview look like my finished page?

The structure will; the styling will not. The preview uses this site's typography, while your page applies its own CSS. Judge headings, lists and tables from the preview, and colour and spacing from your own stylesheet.

Is Markdown to HTML really free, with no limits?

Yes. There is no account, no daily cap, no file-size tier and no watermark, because there is no server cost to recover. The site is funded by clearly disclosed partner recommendations on the Partners page, never by metering the tools.

Are my files or text uploaded when I use Markdown to HTML?

No. Everything is processed by JavaScript running in your browser, on your device. You can verify it: open your browser's developer tools, switch to the Network tab, and use the tool. You will see no request carrying your data — because there is nowhere for it to go.