JavaScript Code Formatter

Transform messy JavaScript code into beautifully formatted, readable code. Our JavaScript formatter provides instant validation, syntax highlighting, minification, and beautification options. Perfect for developers working with ES6+, React, Node.js, and modern JavaScript frameworks.

ES6+ Support Syntax Highlighting Minification Option Error Detection

Quick Examples

ARROW: const sum = (a, b) => a + b
DESTRUCTURING: const { name, age } = user
ASYNC: async function fetchData() { ... }

JavaScript Code Input

Paste your JavaScript code:

Format Settings

Indent Size

Quote Style

Add missing semicolons

Remove trailing whitespace

Add final newline

Sort import statements

Code Statistics

Lines

Characters

Functions

Classes

Formatted JavaScript Code

Validation Results

Format Changes

Help & Related Tools

Everything you need to know

FAQ Frequently Asked Questions

What features does the JavaScript Code Formatter offer?

This tool provides JavaScript beautification, minification, syntax highlighting, error detection, ES6+ support, and export options. Perfect for formatting React, Node.js, and modern JavaScript code with customizable indentation and quote styles.

How do I format my JavaScript code?

Simply paste your JavaScript code into the input area and click "Format Code". The tool works entirely in your browser with real-time validation and supports both beautification and minification modes.

Is the JavaScript formatter compatible with all devices?

Yes, this tool works on all modern browsers and devices. It supports ES6+, React JSX, Node.js, and all JavaScript frameworks. No installation required - everything runs client-side.

Are there any limitations I should know about?

The tool handles most JavaScript syntax including ES6+ features, but very large files (over 10MB) may affect performance. For optimal results, use with standard JavaScript, React, or Node.js code.

Can I minify JavaScript code for production?

Absolutely! The tool includes a minification feature that removes comments, whitespace, and optimizes code for production deployment while maintaining functionality.