How to Add a Secure Password Generator Tool to Your Blogger Website (With HTML, CSS & JavaScript)

Secure Password Generator Tool Using HTML and JavaScript
Mr Anwarul Islam
Secure Password Generator Tool interface with lock icon and options for lowercase, uppercase, numbers, and special characters

How to Add a Secure Password Generator Tool to Your Blogger Website

Password Generator Tool Preview for Blogger

🔐 Add a Secure Password Generator Tool to Your Blogger Website

Do you want to add a password generator tool to your Blogger website? With this easy tutorial, you’ll learn how to add a secure and responsive password generator using only HTML, CSS, and JavaScript — no external libraries or frameworks needed!

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📌 Why Add a Password Generator to Your Blog?

  • ✔️ Helps your visitors create secure, strong passwords instantly
  • ✔️ Improves your site's usefulness and engagement
  • ✔️ Adds a free tool that enhances your site's value for SEO and AdSense
  • ✔️ Requires zero hosting or backend
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🛠️ Step-by-Step: How to Add It in Blogger

Follow these simple steps:

  1. Go to your Blogger Dashboard
  2. Click New Post and select HTML View
  3. Copy and paste the following full code block
  4. Publish the post and see the magic!
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✅ Full Copy-Paste Code for Blogger:


<div style="display:flex; justify-content:center; margin-top: 30px;">
  <div class="password-generator">
    <h3>Generate a Secure Password</h3>

    <div class="options">
      <label><input type="checkbox" id="lowercase" checked /> Lowercase (a-z)</label>
      <label><input type="checkbox" id="uppercase" checked /> Uppercase (A-Z)</label>
      <label><input type="checkbox" id="numbers" checked /> Numbers (0-9)</label>
      <label><input type="checkbox" id="symbols" checked /> Special Characters (@#$%^&*)</label>
      <label>Password Length:
        <select id="length">
          <option value="8">8</option>
          <option value="10">10</option>
          <option value="12" selected>12</option>
          <option value="16">16</option>
          <option value="20">20</option>
        </select>
      </label>
    </div>

    <input type="text" id="password-output" placeholder="Generated password will appear here" readonly />

    <div class="btn-group">
      <button onclick="generatePassword()">Generate</button>
      <button onclick="copyPassword()">Copy</button>
    </div>
    <p id="copy-msg" style="display:none; color:green; font-size: 14px; margin-top:10px;">Password copied to clipboard!</p>
  </div>
</div>

<style>
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');
.password-generator {
  background: #fff;
  border: 1px solid #ddd;
  padding: 25px;
  border-radius: 8px;
  max-width: 500px;
  width: 100%;
  text-align: center;
  box-shadow: 0 0 10px rgba(0,0,0,0.08);
  font-family: 'Roboto', sans-serif;
}
.password-generator h3 {
  font-size: 20px;
  margin-bottom: 15px;
  color: #333;
}
.options {
  text-align: left;
  margin-bottom: 15px;
  font-size: 15px;
}
.options label {
  display: block;
  margin-bottom: 6px;
  color: #444;
}
.password-generator input[type="text"] {
  width: 100%;
  height: 45px;
  padding: 0 15px;
  font-size: 16px;
  border: 1px solid #ccc;
  border-radius: 6px;
  margin-bottom: 15px;
}
.btn-group {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}
.btn-group button {
  flex: 1;
  padding: 10px;
  background-color: #4954f2;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
}
.btn-group button:hover {
  background-color: #343ccf;
}
</style>

<script>
function generatePassword() {
  const includeLower = document.getElementById("lowercase").checked;
  const includeUpper = document.getElementById("uppercase").checked;
  const includeNumber = document.getElementById("numbers").checked;
  const includeSymbol = document.getElementById("symbols").checked;
  const length = parseInt(document.getElementById("length").value);

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

  let allowedChars = "";
  if (includeLower) allowedChars += lower;
  if (includeUpper) allowedChars += upper;
  if (includeNumber) allowedChars += numbers;
  if (includeSymbol) allowedChars += symbols;

  if (allowedChars === "") {
    alert("Please select at least one character type.");
    return;
  }

  let password = "";
  for (let i = 0; i < length; i++) {
    const index = Math.floor(Math.random() * allowedChars.length);
    password += allowedChars.charAt(index);
  }

  document.getElementById("password-output").value = password;
  document.getElementById("copy-msg").style.display = "none";
}

function copyPassword() {
  const passField = document.getElementById("password-output");
  passField.select();
  passField.setSelectionRange(0, 99999);
  document.execCommand("copy");

  const msg = document.getElementById("copy-msg");
  msg.style.display = "block";
  setTimeout(() => {
    msg.style.display = "none";
  }, 2000);
}
</script>


🎉 Final Result

You now have a working password generator on your Blogger website — ready to serve and secure your visitors!

About the author

Mr Anwarul Islam
"Just avoid lying, then everything else will be easy"

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