UI Components Easy

Register Page

Sign-up page with name, email, password, and confirm password fields, real-time strength meter, terms checkbox, and validation. No dependencies.

Open in Lab

css vanilla-js

Targets: JS HTML

Code

/* Reuse base from login-page, extend for register */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0f1117;
  --surface: #16181f;
  --surface2: #1e2130;
  --border: #2a2d3a;
  --text: #e2e8f0;
  --text-muted: #64748b;
  --accent: #818cf8;
  --accent-hover: #a5b4fc;
  --red: #f87171;
  --green: #34d399;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.auth-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
}

.auth-left {
  background: linear-gradient(160deg, #0f160e 0%, #0f1117 50%, #0e1020 100%);
  border-right: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
}

.auth-left-inner {
  max-width: 360px;
}

.brand {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent);
  text-decoration: none;
  display: block;
  margin-bottom: 40px;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.feature-icon {
  font-size: 1.2rem;
}

.auth-right {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  background: var(--bg);
  overflow-y: auto;
}

.auth-card {
  width: 100%;
  max-width: 420px;
}

.auth-header {
  margin-bottom: 24px;
}

.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.auth-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.oauth-group {
  margin-bottom: 18px;
}

.oauth-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 10px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--text);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: background .15s;
}

.oauth-btn:hover {
  background: var(--surface2);
}

.auth-divider {
  position: relative;
  text-align: center;
  margin: 18px 0;
}

.auth-divider::before,
.auth-divider::after {
  content: "";
  position: absolute;
  top: 50%;
  width: calc(50% - 18px);
  height: 1px;
  background: var(--border);
}

.auth-divider::before {
  left: 0;
}

.auth-divider::after {
  right: 0;
}

.auth-divider span {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg);
  padding: 0 8px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.field-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
}

.field-input-wrap {
  position: relative;
}

.field-input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--text);
  font-size: 0.875rem;
  padding: 10px 14px;
  outline: none;
  font-family: inherit;
  transition: border-color .15s;
}

.field-input::placeholder {
  color: var(--text-muted);
}

.field-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.1);
}

.field-input.invalid {
  border-color: var(--red);
}

.field-input-wrap .field-input {
  padding-right: 40px;
}

.pwd-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px;
  transition: color .15s;
}

.pwd-toggle:hover {
  color: var(--text);
}

.field-error {
  font-size: 0.78rem;
  color: var(--red);
}

/* Strength meter */
.strength-meter {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}

.strength-bar-wrap {
  flex: 1;
  height: 4px;
  background: var(--surface2);
  border-radius: 2px;
  overflow: hidden;
}

.strength-bar {
  height: 100%;
  width: 0;
  border-radius: 2px;
  transition: width .3s, background .3s;
}

.strength-bar.s1 {
  background: var(--red);
  width: 25%;
}

.strength-bar.s2 {
  background: #fb923c;
  width: 50%;
}

.strength-bar.s3 {
  background: #facc15;
  width: 75%;
}

.strength-bar.s4 {
  background: var(--green);
  width: 100%;
}

.strength-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.remember-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  cursor: pointer;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.remember-row input {
  accent-color: var(--accent);
  width: 14px;
  height: 14px;
  margin-top: 2px;
  flex-shrink: 0;
}

.terms-link {
  color: var(--accent);
  text-decoration: none;
}

.terms-link:hover {
  text-decoration: underline;
}

.auth-submit {
  width: 100%;
  background: var(--accent);
  border: none;
  border-radius: 9px;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 11px;
  cursor: pointer;
  font-family: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background .15s, opacity .15s;
}

.auth-submit:hover {
  background: var(--accent-hover);
}

.auth-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.btn-spinner svg {
  animation: spin .8s linear infinite;
}

.auth-switch {
  margin-top: 18px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.auth-switch-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

/* Success */
.auth-success {
  text-align: center;
  padding: 16px 0;
}

.success-check {
  font-size: 3rem;
  background: rgba(52, 211, 153, 0.15);
  color: var(--green);
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  margin: 0 auto 20px;
  font-size: 2rem;
  border: 2px solid rgba(52, 211, 153, 0.3);
}

.auth-success h2 {
  font-size: 1.4rem;
  margin-bottom: 10px;
}

.auth-success p {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 24px;
}

@media (max-width: 700px) {
  .auth-layout {
    grid-template-columns: 1fr;
  }

  .auth-left {
    display: none;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

const pwdEl = document.getElementById("password");
const confirmEl = document.getElementById("confirm");
const submitBtn = document.getElementById("registerSubmit");
const bar = document.getElementById("strengthBar");
const label = document.getElementById("strengthLabel");
const meter = document.getElementById("strengthMeter");

function passwordStrength(pwd) {
  let score = 0;
  if (pwd.length >= 8) score++;
  if (pwd.length >= 12) score++;
  if (/[A-Z]/.test(pwd)) score++;
  if (/[0-9]/.test(pwd)) score++;
  if (/[^A-Za-z0-9]/.test(pwd)) score++;
  return Math.min(4, score);
}
const strengthLabels = ["", "Weak", "Fair", "Good", "Strong"];

pwdEl?.addEventListener("input", () => {
  const s = passwordStrength(pwdEl.value);
  meter.hidden = !pwdEl.value;
  bar.className = "strength-bar s" + s;
  label.textContent = strengthLabels[s] || "";
});

confirmEl?.addEventListener("input", () => {
  const errEl = document.getElementById("confirm-error");
  if (confirmEl.value && confirmEl.value !== pwdEl.value) {
    errEl.textContent = "Passwords do not match.";
    errEl.hidden = false;
    confirmEl.classList.add("invalid");
  } else {
    errEl.hidden = true;
    confirmEl.classList.remove("invalid");
  }
});

// Pwd toggle
document.getElementById("pwdToggle")?.addEventListener("click", () => {
  pwdEl.type = pwdEl.type === "password" ? "text" : "password";
});

function showError(id, msg) {
  const el = document.getElementById(id);
  if (el) {
    el.textContent = msg;
    el.hidden = false;
  }
}
function clearError(id) {
  const el = document.getElementById(id);
  if (el) el.hidden = true;
}

document.getElementById("registerForm")?.addEventListener("submit", async (e) => {
  e.preventDefault();
  let valid = true;

  if (!document.getElementById("firstName").value.trim()) {
    showError("firstName-error", "First name is required.");
    valid = false;
  } else clearError("firstName-error");

  const email = document.getElementById("email").value;
  if (!/^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email)) {
    showError("email-error", "Enter a valid email.");
    valid = false;
  } else clearError("email-error");

  if (pwdEl.value.length < 8) {
    showError("password-error", "Password must be at least 8 characters.");
    valid = false;
  } else clearError("password-error");

  if (confirmEl.value !== pwdEl.value) {
    showError("confirm-error", "Passwords do not match.");
    valid = false;
  }

  if (!document.getElementById("terms").checked) {
    showError("terms-error", "You must accept the terms.");
    valid = false;
  } else clearError("terms-error");

  if (!valid) return;

  submitBtn.disabled = true;
  submitBtn.querySelector(".btn-text").hidden = true;
  submitBtn.querySelector(".btn-spinner").hidden = false;

  await new Promise((r) => setTimeout(r, 1400));

  document.getElementById("formState").hidden = true;
  document.getElementById("successState").hidden = false;
});

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Create Account</title>
    <link rel="stylesheet" href="style.css" />
</head>

<body>

    <div class="auth-layout">

        <div class="auth-left">
            <div class="auth-left-inner">
                <a href="#" class="brand">✦ StealThis</a>
                <ul class="feature-list">
                    <li class="feature-item">
                        <span class="feature-icon">⚡</span>
                        <span>300+ copy-paste components</span>
                    </li>
                    <li class="feature-item">
                        <span class="feature-icon">🔧</span>
                        <span>MCP server for AI integration</span>
                    </li>
                    <li class="feature-item">
                        <span class="feature-icon">🎨</span>
                        <span>Web animations & concept pages</span>
                    </li>
                    <li class="feature-item">
                        <span class="feature-icon">🚀</span>
                        <span>Always free · MIT License</span>
                    </li>
                </ul>
            </div>
        </div>

        <div class="auth-right">
            <div class="auth-card">

                <!-- Success state (hidden) -->
                <div class="auth-success" id="successState" hidden>
                    <div class="success-check">✓</div>
                    <h2>Account created!</h2>
                    <p>We've sent a verification email to your inbox. Check it to activate your account.</p>
                    <a href="#" class="auth-submit">Go to sign in</a>
                </div>

                <!-- Form state -->
                <div id="formState">
                    <div class="auth-header">
                        <h1 class="auth-title">Create account</h1>
                        <p class="auth-subtitle">Join thousands of developers already using StealThis.</p>
                    </div>

                    <div class="oauth-group">
                        <button type="button" class="oauth-btn">
                            <svg width="18" height="18" viewBox="0 0 24 24" fill="none">
                                <path
                                    d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z"
                                    fill="#4285F4" />
                                <path
                                    d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z"
                                    fill="#34A853" />
                                <path
                                    d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l3.66-2.84z"
                                    fill="#FBBC05" />
                                <path
                                    d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z"
                                    fill="#EA4335" />
                            </svg>
                            Sign up with Google
                        </button>
                    </div>

                    <div class="auth-divider"><span>or</span></div>

                    <form id="registerForm" class="auth-form" novalidate>

                        <div class="form-row">
                            <div class="field">
                                <label for="firstName" class="field-label">First name</label>
                                <input type="text" id="firstName" class="field-input" placeholder="Alex"
                                    autocomplete="given-name" />
                                <p class="field-error" id="firstName-error" role="alert" hidden></p>
                            </div>
                            <div class="field">
                                <label for="lastName" class="field-label">Last name</label>
                                <input type="text" id="lastName" class="field-input" placeholder="Chen"
                                    autocomplete="family-name" />
                            </div>
                        </div>

                        <div class="field">
                            <label for="email" class="field-label">Email address</label>
                            <input type="email" id="email" class="field-input" placeholder="you@example.com"
                                autocomplete="email" />
                            <p class="field-error" id="email-error" role="alert" hidden></p>
                        </div>

                        <div class="field">
                            <label for="password" class="field-label">Password</label>
                            <div class="field-input-wrap">
                                <input type="password" id="password" class="field-input" placeholder="Min. 8 characters"
                                    autocomplete="new-password" />
                                <button type="button" class="pwd-toggle" id="pwdToggle" aria-label="Toggle password">
                                    <svg width="15" height="15" viewBox="0 0 24 24" fill="none" stroke="currentColor"
                                        stroke-width="2">
                                        <path d="M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z" />
                                        <circle cx="12" cy="12" r="3" />
                                    </svg>
                                </button>
                            </div>
                            <!-- Strength meter -->
                            <div class="strength-meter" id="strengthMeter" hidden>
                                <div class="strength-bar-wrap">
                                    <div class="strength-bar" id="strengthBar"></div>
                                </div>
                                <span class="strength-label" id="strengthLabel"></span>
                            </div>
                            <p class="field-error" id="password-error" role="alert" hidden></p>
                        </div>

                        <div class="field">
                            <label for="confirm" class="field-label">Confirm password</label>
                            <input type="password" id="confirm" class="field-input" placeholder="Repeat your password"
                                autocomplete="new-password" />
                            <p class="field-error" id="confirm-error" role="alert" hidden></p>
                        </div>

                        <label class="remember-row">
                            <input type="checkbox" id="terms" />
                            <span class="remember-text">I agree to the <a href="#" class="terms-link">Terms of
                                    Service</a> and <a href="#" class="terms-link">Privacy Policy</a></span>
                        </label>
                        <p class="field-error" id="terms-error" role="alert" hidden></p>

                        <button type="submit" class="auth-submit" id="registerSubmit">
                            <span class="btn-text">Create account</span>
                            <span class="btn-spinner" hidden>
                                <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor"
                                    stroke-width="2.5">
                                    <path d="M21 12a9 9 0 1 1-6.219-8.56" />
                                </svg>
                            </span>
                        </button>

                    </form>

                    <p class="auth-switch">Already have an account? <a href="#" class="auth-switch-link">Sign in</a></p>
                </div>

            </div>
        </div>

    </div>

    <script src="script.js"></script>
</body>

</html>

Register Page

A complete account registration page with full name, email, password, and confirm-password fields, live password strength meter, terms & conditions checkbox, and inline validation.

Features

Full name + email + password + confirm-password fields
Real-time password strength meter (Weak / Fair / Good / Strong) based on length, symbols, numbers, and uppercase
Password match validation in real-time on the confirm field
“Accept Terms” checkbox with link to terms page
Google and GitHub OAuth alternatives
Client-side validation on submit with inline error messages
Success state with animated checkmark

How it works

passwordStrength() scores a password 0–4 and updates meter bar width + label
confirmPassword field turns red/green as the user types to match
Submit handler validates all fields before simulating account creation with a loader