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JavaScript Syntax Highlighter

Highlight JavaScript code and export it as ready-to-embed HTML with GitHub light or dark colours.

Runs in your browserJavaScript → HTML
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Example

Input
const answer = 42; // ok
Output
<pre class="hljs"><code class="language-javascript"><span class="hljs-keyword">const</span> answer = <span class="hljs-number">42</span>; <span class="hljs-comment">// ok</span></code></pre>

How to use the JavaScript Syntax Highlighter

  1. Paste or type your JavaScript into the input area, or open a file from your device.
  2. Adjust the options above the editor if the tool offers any.
  3. Review the HTML result, then copy it or download it as a file.

Privacy and limitations

  • Your data is processed on your device and is not uploaded to any server.

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