JavaScript Formatter & Minifier
About JavaScript Formatter & Minifier
Beautify messy, minified, or copied JavaScript with proper indentation, or minify your code to shrink it for production. The formatter handles ES6+ syntax including arrow functions, destructuring, template literals, classes, and modules, so modern code is indented correctly. Paste a script, pick format or minify, and copy the result — everything runs in your browser with no upload.
How To Use
- Paste your JavaScript code into the input.
- Choose to format (beautify with indentation) or minify (strip whitespace for production).
- Copy the result back into your project or build step.
Example
Input: A minified one-line JavaScript snippet copied from a bundle.
Output: The same code, neatly indented across multiple lines with readable structure.
Who Uses JavaScript Formatter & Minifier
- JavaScript developers cleaning up minified code or formatting messy scripts for readability.
- Frontend engineers preparing production builds or reviewing code without uploading proprietary JS.
- Anyone who needs instant JS formatting or minification in the browser.
Frequently Asked Questions
Does it support modern JavaScript syntax?
Yes. The formatter understands ES6+ features including arrow functions, destructuring, template literals, classes, optional chaining, and ES modules.
What does minifying do?
Minifying removes unnecessary whitespace, line breaks, and comments to reduce file size, which speeds up page loads. Use it for production builds; keep the formatted version for editing.
Is my code uploaded anywhere?
No. Formatting and minifying both run locally in your browser, so private or proprietary code never leaves your device.
Can it format TypeScript?
This tool targets JavaScript. For TypeScript interfaces and types, use a dedicated TypeScript formatter, but plain JS and JS-with-types syntax will still indent cleanly.