JavaScript Minifier
Minify JavaScript code online to remove whitespace and shrink file size. Free and runs in your browser.
What is a JavaScript / JSX Code Formatter?
A code formatter (sometimes called a “beautifier”) automatically rewrites your JavaScript or React (JSX) to follow consistent spacing, indentation, and line breaks—without changing what the code does. This makes code easier to read, review, and maintain, especially when working on teams or sharing snippets.
This tool focuses on formatting and quick validation feedback. It helps clean up messy code, normalize indentation, and highlight potential syntax problems so you can catch issues earlier—before running or deploying code.
How do I minify JavaScript?+
Paste your JavaScript into the input. The minified version appears automatically; copy or download it.
What does minifying do?+
It removes whitespace and comments and shortens variable names so the file loads faster.
Is my code uploaded anywhere?+
No. Minification runs entirely in your browser, so your code stays on your device.