Password Generator

This is a simple and responsive Password Generator built with HTML, Vanilla JavaScript, and Tailwind CSS. It allows users to create secure passwords by selecting custom options such as length, uppercase letters, lowercase letters, numbers, and symbols. Ideal for developers or users looking for a fast and customizable password tool.

This tailwind example is contributed by SAURAV SINGH, on 16-Jul-2025. Component is made with Tailwind v3.4. It is responsive.

Other

Author SAURAV SINGH

Tailwind v3.4 1.4k 3

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<div class="w-full max-w-md p-6 bg-white rounded-lg shadow-md m-4">
    <h1 class="text-2xl font-bold text-center mb-6">🔐 Password Generator</h1>

<div class="mb-4">
      <label class="block text-sm font-medium mb-1">Password Length</label>
      <input id="lengthSlider" type="range" min="4" max="32" value="12" class="w-full cursor-pointer">
      <div class="text-sm text-right mt-1">Length: <span id="lengthValue" class="font-semibold">12</span></div>
    </div>

<div class="grid grid-cols-2 gap-2 mb-6 text-sm">
      <label class="flex items-center space-x-2">
        <input type="checkbox" id="uppercase" class="form-checkbox" />
        <span>Uppercase</span>
      </label>
      <label class="flex items-center space-x-2">
        <input type="checkbox" id="lowercase" checked class="form-checkbox" />
        <span>Lowercase</span>
      </label>
      <label class="flex items-center space-x-2">
        <input type="checkbox" id="numbers" class="form-checkbox" />
        <span>Numbers</span>
      </label>
      <label class="flex items-center space-x-2">
        <input type="checkbox" id="symbols" class="form-checkbox" />
        <span>Symbols</span>
      </label>
    </div>

<button onclick="generatePassword()" class="w-full bg-blue-600 text-white py-2 rounded hover:bg-blue-700 mb-4">
      Generate Password
    </button>

<div class="flex items-center justify-between px-3 py-2 bg-gray-100 rounded text-sm">
      <span id="passwordDisplay" class="break-all text-gray-800">Your password will appear here</span>
      <button onclick="copyPassword()" class="text-blue-600 hover:underline text-sm ml-4" id="copyBtn">Copy</button>
    </div>
  </div>

lengthSlider.addEventListener('input', () => {
      lengthValue.textContent = lengthSlider.value;
    });

function generatePassword() {
      const length = parseInt(lengthSlider.value);
      const includeLower = document.getElementById('lowercase').checked;
      const includeUpper = document.getElementById('uppercase').checked;
      const includeNumbers = document.getElementById('numbers').checked;
      const includeSymbols = document.getElementById('symbols').checked;

const lower = 'abcdefghijklmnopqrstuvwxyz';
      const upper = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
      const numbers = '0123456789';
      const symbols = '!@#$%^&*()_+-=[]{}|;:,.<>?';

let chars = '';
      if (includeLower) chars += lower;
      if (includeUpper) chars += upper;
      if (includeNumbers) chars += numbers;
      if (includeSymbols) chars += symbols;

if (!chars) {
        passwordDisplay.textContent = "Please select at least one option.";
        return;
      }

let password = '';
      for (let i = 0; i < length; i++) {
        const randomChar = chars[Math.floor(Math.random() * chars.length)];
        password += randomChar;
      }

passwordDisplay.textContent = password;
      copyBtn.textContent = "Copy";
    }

function copyPassword() {
      const password = passwordDisplay.textContent;
      if (!password || password === "Please select at least one option.") return;

navigator.clipboard.writeText(password).then(() => {
        copyBtn.textContent = "Copied!";
        setTimeout(() => {
          copyBtn.textContent = "Copy";
        }, 2000);
      });
    }
  </script>

</body>

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