JavaScript Formatter
Free online JavaScript formatter tool, beautify and minify
Why Format JavaScript?
Formatted JavaScript is easier to read, review, and debug. Proper indentation reveals code structure, matching braces prevent errors, and consistent formatting follows team conventions. Minified JavaScript removes all unnecessary whitespace for production deployment.
How to Format or Minify JS
Paste your JavaScript code in the input area. Click Format JS to beautify it with consistent indentation. Click Minify JS to remove whitespace and produce compact output suitable for production.
▶What formatting style does this tool use?
The tool uses a consistent 2-space indentation style with proper line breaks around braces, keywords, and operators. This matches common JavaScript coding conventions.
▶Does minification affect code performance?
Minified JavaScript is smaller, which reduces download time and parse time. The execution behavior is identical to the original code. Always keep the original source for development.
▶Can this tool handle modern JavaScript (ES6+)?
Yes, the formatter supports modern syntax including arrow functions, template literals, destructuring, async/await, classes, and modules.