JavaScript Formatter
Beautify and format your messy JavaScript code with our free online tool. Make your code readable and professional in seconds!
Formatted JavaScript
Instant Formatting
Our tool instantly formats your JavaScript code with proper indentation, line breaks, and spacing, making it clean and readable.
Minification Option
Need to reduce file size? Use our minifier to compress JavaScript by removing all unnecessary characters without changing functionality.
Privacy Focused
All processing happens in your browser. Your code never leaves your computer, ensuring complete privacy and security.
Why Use Our JavaScript Formatter?
Working with JavaScript often means dealing with minified or poorly formatted code. Our JavaScript Formatter tool solves this problem by instantly transforming messy, hard-to-read code into beautifully formatted, professional-looking JavaScript. Whether you're debugging, learning, or preparing code for production, our tool helps you maintain clean, readable code standards.
Perfect for Developers
This tool is essential for web developers who need to quickly format third-party JavaScript or clean up their own code. It handles all modern JavaScript syntax including ES6+ features, arrow functions, template literals, and more.
Educational Benefits
For students learning JavaScript, our formatter helps understand complex code by revealing its structure through proper formatting. See how control flows and functions are organized with clear indentation.
Team Collaboration
When working in teams, consistent code formatting is crucial. Use our tool to standardize JavaScript files before sharing with colleagues, making code reviews more efficient.
Frequently Asked Questions
Our formatter uses a JavaScript parser to analyze your code's structure. It then applies standard formatting rules including proper indentation (4 spaces), appropriate line breaks, and consistent spacing around operators and brackets. The result is clean, readable code that follows common JavaScript style guides.
Yes! Our formatter fully supports all modern JavaScript features including arrow functions, template literals, destructuring, async/await, classes, modules, and more. It properly formats these modern syntax elements while maintaining readability.
Absolutely. Our tool is perfect for formatting minified JavaScript. Simply paste your minified code and click "Format Code" to transform it into readable, properly indented JavaScript. This is especially useful when debugging third-party scripts.
While there's no strict limit, extremely large files (several MB) may slow down your browser. For optimal performance, we recommend formatting files under 1MB. The tool works entirely in your browser, so performance depends on your device's capabilities.
Our minifier removes all unnecessary characters from your JavaScript code including whitespace, comments, and newlines. It also shortens variable names when possible (without changing functionality) to produce the smallest possible file size for production use.