JavaScript Formatter
Format and beautify JavaScript code instantly. Free online JS formatter with cus...Format and beautify JavaScript code instantly. Free online JS formatter with customizable indentation - all processing happens in your browser.
Formatted JavaScript will appear here...
Formatter Features
Why Use JavaScript Formatter?
Instant Formatting
Format JavaScript code instantly with a single click. No waiting, no server processing - everything happens locally in your browser.
100% Private
Your code never leaves your device. Complete privacy and security guaranteed - safe for proprietary and sensitive code.
ES6+ Support
Full support for modern JavaScript syntax including arrow functions, template literals, destructuring, classes, and async/await.
Completely Free
No hidden fees, no subscriptions, no usage limits. Format unlimited JavaScript code for free, forever.
Common Use Cases
Debugging Minified Code
Format minified third-party scripts to understand and debug issues in production code.
Code Reviews
Ensure consistent formatting before submitting code for review by teammates.
Learning & Teaching
Make code examples readable for students or when learning from open-source projects.
Version Control
Format code before committing to keep diffs clean and readable in Git history.
How It Works
Paste Your JavaScript Code
Copy your minified, compressed, or poorly formatted JavaScript code and paste it into the input area. The tool accepts all valid JavaScript syntax including ES6+ features.
Choose Indentation Settings
Select your preferred indentation style - 2 spaces or 4 spaces. This ensures the formatted code matches your project's coding standards.
Format and Copy
Click the Format Code button to beautify your JavaScript. Review the formatted output in the right panel and click Copy to save it to your clipboard.
Formatting Tips
Consistent Indentation
Use consistent indentation across your project to maintain readability and make code reviews easier.
Format Before Committing
Format your code before committing to version control to keep diffs clean and readable.
Combine with Linting
Combine formatting with linting tools like ESLint for comprehensive code quality.