JavaScript Formatter
Beautify and format minified or messy JavaScript code. Add proper indentation, line breaks, and spacing to make your code readable.
Features
Smart Indentation
Automatically indents code based on brace depth with consistent 2-space formatting.
Readable Output
Transforms compact one-line JavaScript into well-structured, easy-to-read code.
Client-Side Only
Your code stays in your browser. Nothing is uploaded, stored, or shared with anyone.
Works Everywhere
No downloads or installations. Works in any modern web browser on desktop or mobile.
How It Works
Paste Code
Paste your minified or messy JavaScript into the input area.
Click Format
Press the Format JS button to beautify your code.
Copy Result
Copy the formatted JavaScript to use in your project.
Frequently Asked Questions
How do I format JavaScript online?▾
Paste your JavaScript code into the input area and click "Format JS". The tool adds proper indentation, line breaks, and spacing automatically.
Does formatting change how my code runs?▾
No. Formatting only changes whitespace and indentation. Your code will execute identically before and after formatting.
Can I format minified JavaScript?▾
Yes. The formatter takes minified, single-line JavaScript and expands it into properly indented, readable code with clear structure.
Does the formatter handle ES6+ syntax?▾
The formatter handles most JavaScript syntax including arrow functions, template literals, destructuring, and modern ES6+ features.
Is my code safe?▾
Yes. All formatting runs entirely in your browser. Your JavaScript code is never sent to any server or stored anywhere.
What indentation style is used?▾
The formatter uses 2-space indentation, which is the most common convention in the JavaScript community.