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JavaScript Beautifier is a free online tool that formats and indents JavaScript code, making minified or compressed JS easy to read and debug. No installation required — runs entirely in your browser.

JavaScript beautification (also called pretty-printing) is the process of reformatting compressed or minified JavaScript code with proper indentation and line breaks. It is the reverse of minification and is essential for reading, debugging, and reviewing third-party or obfuscated code.

JavaScript Beautifier

Beautify and format JavaScript code instantly in your browser.

How to Use

  1. Paste your minified or unformatted JavaScript into the input field
  2. Click Beautify JS
  3. The tool will reformat the code with proper indentation
  4. Copy the beautified output for review or editing

Example

Input

function hello(){console.log('Hello World');}

Output

function hello() {
  console.log('Hello World');
}

FAQ

What is JavaScript beautification?
It reformats compressed or minified JavaScript with proper indentation and line breaks, making it human-readable.
Is this tool free?
Yes, it is completely free with no registration required.
Does this tool run in the browser?
Yes, all processing happens locally in your browser with no data sent to a server.

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