⚡ JS Tool

JavaScript
Minifier

Compress JavaScript by removing comments, unnecessary whitespace, and redundant code. Reduce page load times with smaller JS bundles.

Remove comments & whitespace

Compression stats

Preserve strings

Download minified JS

Remove // comments Remove /* */ comments Collapse whitespace Remove newlines Remove optional semicolons ⚠

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Original

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Minified

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Saved

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Reduction

JavaScript Input

/**
 * Password Generator — generates secure random passwords
 * using the Web Crypto API for true randomness.
 */

function generatePassword(length, options) {
    // Character sets
    const UPPER = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
    const LOWER = 'abcdefghijklmnopqrstuvwxyz';
    const NUMS  = '0123456789';
    const SYMS  = '!@#$%^&*()_+-=[]{}|;:,.<>?';

// Build pool based on options
    let pool = '';
    if (options.uppercase) pool += UPPER;
    if (options.lowercase) pool += LOWER;
    if (options.numbers)   pool += NUMS;
    if (options.symbols)   pool += SYMS;
    if (!pool) pool = LOWER; // fallback

let password = '';
    const randomValues = new Uint32Array(length);
    crypto.getRandomValues(randomValues);

for (let i = 0; i < length; i++) {
        password += pool[randomValues[i] % pool.length];
    }

return password;
}

// Copy to clipboard
function copyToClipboard(text) {
    return navigator.clipboard.writeText(text)
        .then(() => {
            console.log('Copied!');
            return true;
        })
        .catch((err) => {
            console.error('Copy failed:', err);
            return false;
        });
}

Minified Output

⚠ This is a basic minifier. For production use, consider tools like Terser, UglifyJS, or esbuild which handle AST-level optimizations.

JavaScriptMinifier

JavaScript
Minifier