Developer Tools

JS Beautifier

Take ugly, minified JavaScript and turn it back into something a human can read. Powered by js-beautify.

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Minified

Beautified

function hello(name) {
  console.log("hi " + name);
  return name.length > 0;
}

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Frequently Asked Questions

Format, validate and minify JSON with clear error messages.

Decode the header and payload of any JSON Web Token instantly.

Test regular expressions live against any sample text.

Generate v4 (random) UUIDs in bulk.