Formatter

JavaScript Minifier

Minify JavaScript online by removing comments and unnecessary formatting. Compress JavaScript locally in your browser.

JavaScript Minifier

Minify JavaScript online by removing comments and unnecessary formatting. Compress JavaScript locally in your browser.

This tool runs in your browser. Your input is processed locally and is not uploaded.

About this Tool

Use this free JavaScript Minifier to reduce JavaScript source size for websites, applications, scripts, and code snippets. Paste JavaScript, remove comments and unnecessary formatting, shorten compatible syntax, and copy or download the minified result. Processing runs directly in your browser, so source code does not need to be sent to an external service.

Examples

function greet(name) { const message = `Hello, ${name}!`; console.log(message); } greet("World");
const numbers = [1, 2, 3, 4]; const doubled = numbers.map((number) => number * 2); console.log(doubled);
document.querySelector(".button")?.addEventListener("click", () => { alert("Clicked"); });