Bootstrap 5 Login and Register Form with Tabs
A split-screen authentication card with a brand panel, sign in and create account tabs, floating-label fields and social login buttons. Switch between forms without leaving the card.
<section class="wdw-stage">
<div class="container w-100" style="max-width:920px">
<div class="wdw-card overflow-hidden" id="auth">
<div class="row g-0">
<div class="col-lg-5 d-none d-lg-flex wdw-aurora p-5 flex-column justify-content-between">
<div class="d-flex align-items-center gap-2 fw-bold fs-5">
<svg width="26" height="26" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M12 3l9 5-9 5-9-5 9-5zM3 13l9 5 9-5"/></svg>
Northwind
</div>
<div>
<h2 class="fw-bold mb-3" style="letter-spacing:-.02em;line-height:1.15">Everything you need, in one place.</h2>
<p class="mb-0 opacity-75">Sign in to pick up where you left off, or create a free account in under a minute.</p>
</div>
</div>
<div class="col-lg-7 p-4 p-md-5">
<ul class="nav nav-pills bg-body-tertiary rounded-pill p-1 mb-4 nav-fill" role="tablist">
<li class="nav-item" role="presentation"><button class="nav-link rounded-pill active" id="tab-login" data-bs-toggle="pill" data-bs-target="#pane-login" type="button" role="tab" aria-controls="pane-login" aria-selected="true">Sign in</button></li>
<li class="nav-item" role="presentation"><button class="nav-link rounded-pill" id="tab-register" data-bs-toggle="pill" data-bs-target="#pane-register" type="button" role="tab" aria-controls="pane-register" aria-selected="false">Create account</button></li>
</ul>
<div class="tab-content">
<div class="tab-pane fade show active" id="pane-login" role="tabpanel" aria-labelledby="tab-login">
<h1 class="wdw-heading h3 mb-1">Welcome back</h1>
<p class="wdw-muted mb-4">Enter your details to access your account.</p>
<form class="auth-form" novalidate>
<div class="form-floating mb-3">
<input type="email" class="form-control" id="login-email" placeholder="[email protected]" autocomplete="email" required>
<label for="login-email">Email address</label>
</div>
<div class="form-floating mb-3">
<input type="password" class="form-control" id="login-pass" placeholder="Password" autocomplete="current-password" required>
<label for="login-pass">Password</label>
</div>
<div class="d-flex justify-content-between align-items-center mb-4">
<div class="form-check mb-0"><input class="form-check-input" type="checkbox" id="remember" checked><label class="form-check-label" for="remember">Remember me</label></div>
<a href="#" class="small fw-semibold text-decoration-none">Forgot password?</a>
</div>
<button class="btn btn-primary rounded-pill w-100" type="submit">Sign in</button>
</form>
</div>
<div class="tab-pane fade" id="pane-register" role="tabpanel" aria-labelledby="tab-register">
<h1 class="wdw-heading h3 mb-1">Create your account</h1>
<p class="wdw-muted mb-4">Free to start. No credit card needed.</p>
<form class="auth-form" novalidate>
<div class="form-floating mb-3">
<input type="text" class="form-control" id="reg-name" placeholder="Full name" autocomplete="name" required>
<label for="reg-name">Full name</label>
</div>
<div class="form-floating mb-3">
<input type="email" class="form-control" id="reg-email" placeholder="[email protected]" autocomplete="email" required>
<label for="reg-email">Email address</label>
</div>
<div class="form-floating mb-4">
<input type="password" class="form-control" id="reg-pass" placeholder="Password" autocomplete="new-password" minlength="8" required>
<label for="reg-pass">Password (8+ characters)</label>
</div>
<button class="btn btn-primary rounded-pill w-100" type="submit">Create account</button>
</form>
</div>
</div>
<div class="d-flex align-items-center gap-3 my-4 text-body-secondary small"><hr class="flex-grow-1 m-0"><span>or continue with</span><hr class="flex-grow-1 m-0"></div>
<div class="row g-2">
<div class="col-6"><button type="button" class="btn btn-outline-secondary rounded-pill w-100"><span class="fw-bold fs-5 lh-1" aria-hidden="true">G</span> Google</button></div>
<div class="col-6"><button type="button" class="btn btn-outline-secondary rounded-pill w-100"><svg width="18" height="18" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true"><path d="M12 .5C5.65.5.5 5.65.5 12c0 5.08 3.29 9.39 7.86 10.91.58.1.79-.25.79-.56v-2c-3.2.7-3.87-1.54-3.87-1.54-.52-1.33-1.28-1.69-1.28-1.69-1.04-.71.08-.7.08-.7 1.15.08 1.76 1.18 1.76 1.18 1.03 1.76 2.69 1.25 3.35.96.1-.74.4-1.25.73-1.54-2.55-.29-5.24-1.28-5.24-5.69 0-1.26.45-2.28 1.18-3.09-.12-.29-.51-1.46.11-3.05 0 0 .97-.31 3.17 1.18a11 11 0 0 1 5.77 0c2.2-1.49 3.17-1.18 3.17-1.18.63 1.59.23 2.76.11 3.05.74.81 1.18 1.83 1.18 3.09 0 4.42-2.7 5.4-5.27 5.68.41.36.78 1.06.78 2.14v3.17c0 .31.21.67.8.56A11.5 11.5 0 0 0 23.5 12C23.5 5.65 18.35.5 12 .5z"/></svg> GitHub</button></div>
</div>
<p class="small text-body-secondary mt-4 mb-0 text-center" id="auth-switch">Don't have an account? <a href="#" class="fw-semibold text-decoration-none" data-switch="register">Sign up</a></p>
</div>
</div>
</div>
</div>
</section>
/* Web Designer Wall library style — shared base for every Bootstrap 5 snippet.
Indigo accent, Plus Jakarta Sans, soft cards, pill buttons. Works in light and dark. */
@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap");
:root,
[data-bs-theme="light"] {
--wdw-font: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
--bs-body-font-family: var(--wdw-font);
--bs-primary: #4f46e5;
--bs-primary-rgb: 79, 70, 229;
--bs-primary-text-emphasis: #3730a3;
--bs-primary-bg-subtle: #eef2ff;
--bs-primary-border-subtle: #c7d2fe;
--bs-link-color: #4f46e5;
--bs-link-color-rgb: 79, 70, 229;
--bs-link-hover-color: #4338ca;
--bs-link-hover-color-rgb: 67, 56, 202;
--bs-focus-ring-color: rgba(79, 70, 229, 0.25);
--bs-border-radius: 0.75rem;
--bs-border-radius-lg: 1rem;
--bs-border-radius-xl: 1.25rem;
--wdw-radius-card: 1.25rem;
--wdw-shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 16px 40px -16px rgba(16, 24, 40, 0.22);
--wdw-shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06), 0 4px 12px -4px rgba(16, 24, 40, 0.12);
--wdw-stage: #f5f6fb;
}
[data-bs-theme="dark"] {
--bs-primary: #818cf8;
--bs-primary-rgb: 129, 140, 248;
--bs-primary-text-emphasis: #c7d2fe;
--bs-primary-bg-subtle: rgba(129, 140, 248, 0.14);
--bs-primary-border-subtle: rgba(129, 140, 248, 0.35);
--bs-link-color: #a5b4fc;
--bs-link-color-rgb: 165, 180, 252;
--bs-link-hover-color: #c7d2fe;
--bs-link-hover-color-rgb: 199, 210, 254;
--bs-focus-ring-color: rgba(129, 140, 248, 0.35);
--wdw-shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 16px 40px -16px rgba(0, 0, 0, 0.7);
--wdw-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4), 0 4px 12px -4px rgba(0, 0, 0, 0.5);
--wdw-stage: #0f1117;
}
body { font-family: var(--wdw-font); -webkit-font-smoothing: antialiased; }
/* Bootstrap compiles its blue into these components; point them at the accent. */
.btn-primary {
--bs-btn-bg: var(--bs-primary); --bs-btn-border-color: var(--bs-primary);
--bs-btn-hover-bg: #4338ca; --bs-btn-hover-border-color: #4338ca;
--bs-btn-active-bg: #3730a3; --bs-btn-active-border-color: #3730a3;
--bs-btn-disabled-bg: var(--bs-primary); --bs-btn-disabled-border-color: var(--bs-primary);
--bs-btn-focus-shadow-rgb: var(--bs-primary-rgb);
}
[data-bs-theme="dark"] .btn-primary { --bs-btn-color: #0f1117; --bs-btn-hover-bg: #a5b4fc; --bs-btn-hover-border-color: #a5b4fc; --bs-btn-hover-color: #0f1117; --bs-btn-active-color: #0f1117; }
.btn-outline-primary {
--bs-btn-color: var(--bs-primary); --bs-btn-border-color: var(--bs-primary);
--bs-btn-hover-bg: var(--bs-primary); --bs-btn-hover-border-color: var(--bs-primary);
--bs-btn-active-bg: var(--bs-primary); --bs-btn-active-border-color: var(--bs-primary);
--bs-btn-focus-shadow-rgb: var(--bs-primary-rgb);
}
.btn { --bs-btn-font-weight: 600; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: .5rem; }
.btn-sm { min-height: 36px; }
.form-control, .form-select { min-height: 44px; border-radius: .75rem; }
.form-control:focus, .form-select:focus, .form-check-input:focus { border-color: rgba(var(--bs-primary-rgb), .6); box-shadow: 0 0 0 .25rem var(--bs-focus-ring-color); }
.form-check-input:checked { background-color: var(--bs-primary); border-color: var(--bs-primary); }
.nav-pills { --bs-nav-pills-link-active-bg: var(--bs-primary); }
.nav { --bs-nav-link-color: var(--bs-secondary-color); --bs-nav-link-hover-color: var(--bs-emphasis-color); }
.pagination { --bs-pagination-active-bg: var(--bs-primary); --bs-pagination-active-border-color: var(--bs-primary); --bs-pagination-color: var(--bs-body-color); --bs-pagination-focus-box-shadow: 0 0 0 .25rem var(--bs-focus-ring-color); }
.progress, .progress-stacked { --bs-progress-bar-bg: var(--bs-primary); }
.list-group { --bs-list-group-active-bg: var(--bs-primary); --bs-list-group-active-border-color: var(--bs-primary); }
.dropdown-menu { --bs-dropdown-link-active-bg: var(--bs-primary); border-radius: .875rem; box-shadow: var(--wdw-shadow-sm); }
.accordion { --bs-accordion-active-bg: var(--bs-primary-bg-subtle); --bs-accordion-active-color: var(--bs-primary-text-emphasis); --bs-accordion-btn-focus-box-shadow: 0 0 0 .25rem var(--bs-focus-ring-color); }
.badge { font-weight: 600; }
/* Library building blocks — use these instead of re-inventing them per snippet. */
.wdw-stage { min-height: 100vh; display: flex; align-items: center; background: var(--wdw-stage); padding-block: 3rem; }
.wdw-card { background: var(--bs-body-bg); border: 1px solid var(--bs-border-color-translucent); border-radius: var(--wdw-radius-card); box-shadow: var(--wdw-shadow); }
.wdw-card-sm { background: var(--bs-body-bg); border: 1px solid var(--bs-border-color-translucent); border-radius: 1rem; box-shadow: var(--wdw-shadow-sm); }
.wdw-aurora { position: relative; color: #fff; background: radial-gradient(60% 55% at 100% 0, #818cf8 0, transparent 70%), radial-gradient(65% 60% at 0 100%, #ec4899 0, transparent 65%), #1e1b4b; }
.wdw-eyebrow { display: inline-block; font-size: .75rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--bs-primary); }
.wdw-heading { font-weight: 800; letter-spacing: -.02em; color: var(--bs-emphasis-color); }
.wdw-muted { color: var(--bs-secondary-color); }
.wdw-icon { width: 2.75rem; height: 2.75rem; flex: none; display: inline-flex; align-items: center; justify-content: center; border-radius: .875rem; background: var(--bs-primary-bg-subtle); color: var(--bs-primary); }
/* Component */
#auth .nav-link{min-height:40px;font-weight:600;font-size:.9rem;color:var(--bs-secondary-color)}
#auth .nav-link.active{color:#fff}
[data-bs-theme="dark"] #auth .nav-link.active{color:#0f1117}
#auth .form-floating>.form-control{min-height:3.5rem}
#auth .btn-outline-secondary{--bs-btn-color:var(--bs-body-color)}
#auth .wdw-aurora{min-height:34rem}
#auth .tab-pane.fade{transition-duration:.15s}
(function () {
function initAuth() {
var root = document.getElementById('auth');
if (!root) return;
var link = root.querySelector('#auth-switch');
var loginTab = root.querySelector('#tab-login');
var regTab = root.querySelector('#tab-register');
function sync() {
var reg = regTab.classList.contains('active');
link.innerHTML = reg
? 'Already have an account? <a href="#" class="fw-semibold text-decoration-none" data-switch="login">Sign in</a>'
: 'Don\'t have an account? <a href="#" class="fw-semibold text-decoration-none" data-switch="register">Sign up</a>';
}
link.addEventListener('click', function (e) {
var a = e.target.closest('[data-switch]');
if (!a) return;
e.preventDefault();
bootstrap.Tab.getOrCreateInstance(a.dataset.switch === 'register' ? regTab : loginTab).show();
});
[loginTab, regTab].forEach(function (t) { t.addEventListener('shown.bs.tab', sync); });
root.querySelectorAll('.auth-form').forEach(function (f) {
f.addEventListener('submit', function (e) {
e.preventDefault();
f.classList.add('was-validated');
});
});
}
initAuth();
})();
Built on Bootstrap 5.3.8 with plain JavaScript — no jQuery. Supports light and dark mode via data-bs-theme.