JS Beautifier

Format and beautify JavaScript

Input Code
Formatted Code

About JavaScript Beautifier

1What is it?

Format and beautify minified or obfuscated JavaScript code. Restore proper indentation and spacing to make scripts readable and easier to debug.

2Use Cases

  • Understand how a minified script works
  • Debug third-party code
  • Clean up messy code before committing
  • Learn coding patterns from examples

3Examples

Beautify JS

Input

function f(a){return a+1}

Output

function f(a) {
  return a + 1;
}

?Frequently Asked Questions

Does it support modern ES6+ syntax?

Yes, our formatter supports modern JavaScript features including arrow functions, classes, and modules.