Js Minifier

Free online js minifier tool by ToolsOx.

Client-side basic minification — safe but not as aggressive as professional tools like Terser.

Input JavaScript

// User Authentication Module
function authenticateUser(username, password) {
  // Check if credentials are valid
  if (username === null || password === null) {
    return { success: false, message: "Credentials required" };
  }

/* Validate username format
     Must be alphanumeric, 3-20 characters */
  const usernameRegex = /^[a-zA-Z0-9]{3,20}$/;
  if (!usernameRegex.test(username)) {
    return { success: false, message: "Invalid username format" };
  }

// Hash the password for comparison
  const hashedPassword = hashPassword(password);
  const user = findUserByUsername(username);

if (user && user.passwordHash === hashedPassword) {
    // Generate JWT token
    const token = generateToken(user.id);
    return {
      success: true,
      token: token,
      user: {
        id: user.id,
        name: user.name,
        email: user.email
      }
    };
  }

return { success: false, message: "Invalid credentials" };
}

// Helper function to process data
function processData(items) {
  let results = [];
  for (let i = 0; i < items.length; i++) {
    const item = items[i];
    if (item.active === true) {
      const processed = transformItem(item);
      results.push(processed);
    }
  }
  return results;
}

/* Calculate total price
   with tax and discount */
function calculateTotal(items, taxRate, discount) {
  let subtotal = 0;
  for (const item of items) {
    subtotal += item.price * item.quantity;
  }
  const tax = subtotal * taxRate;
  const total = subtotal + tax - discount;
  return total;
}

Output

Output will appear here...