Use this free online JavaScript Minifier to compress and optimize JavaScript code by removing unnecessary whitespace, line breaks, comments, and formatting. Whether you are preparing scripts for production, improving website performance, or reducing file sizes, this tool helps create compact JavaScript files quickly and efficiently.
Simply paste your JavaScript code into the tool or upload a JavaScript file to instantly generate a minified version. You can also use our JavaScript Beautifier to format and organize your JavaScript whenever needed.
Examples
Input
function calculateTotal(price, quantity) {
const total = price * quantity;
console.log("Total:", total);
return total;
}
calculateTotal(25, 4);Output (Minified JavaScript)
function calculateTotal(l,o){const t=l*o;return console.log("Total:",t),t}calculateTotal(25,4);Frequently asked questions
What does a JavaScript Minifier do?
A JavaScript Minifier removes unnecessary whitespace, comments, and formatting characters to reduce file size.
Does minification change how my code works?
No. Minification preserves functionality while making the file smaller and more efficient to download.
Why should I minify JavaScript?
Minification reduces file size, improves page loading speed, and helps optimize website performance.