Bootstrap 5 Login Form with Sign Up Toggle
A split-screen sign-in and sign-up card with social buttons, floating-label fields and a brand panel that switches between the two forms.
<section class="wdw-stage">
<div class="container" style="max-width:960px">
<div class="wdw-card overflow-hidden auth-split" id="authSplit" data-mode="signin">
<div class="row g-0">
<div class="col-lg-6 order-lg-2 wdw-aurora p-4 p-md-5 d-flex flex-column justify-content-between auth-panel">
<div class="d-flex align-items-center gap-2 fw-bold">
<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 3l8 4.5v9L12 21l-8-4.5v-9L12 3z"/><path d="M12 12l8-4.5M12 12v9M12 12L4 7.5"/></svg>
Northwind
</div>
<div class="py-4">
<h2 class="display-6 fw-bold mb-3" data-panel-title>New here?</h2>
<p class="mb-4 opacity-75" data-panel-text>Create a free account and start building with your team in minutes.</p>
<button type="button" class="btn btn-outline-light rounded-pill px-4" data-switch>Create account</button>
</div>
<p class="small opacity-75 mb-0">Trusted by 12,000+ product teams</p>
</div>
<div class="col-lg-6 order-lg-1 p-4 p-md-5">
<form class="auth-form" data-form="signin" novalidate>
<span class="wdw-eyebrow">Welcome back</span>
<h1 class="wdw-heading h2 mb-4">Sign in</h1>
<div class="d-flex gap-2 mb-3">
<button type="button" class="btn btn-outline-secondary rounded-pill flex-fill" aria-label="Continue with Google">
<svg width="18" height="18" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true"><path d="M21.35 11.1H12v2.9h5.35c-.5 2.4-2.5 3.5-5.35 3.5a6 6 0 110-12c1.5 0 2.8.5 3.8 1.4l2.1-2.1A9 9 0 1012 21c5.2 0 8.6-3.6 8.6-8.8 0-.4 0-.8-.1-1.1z"/></svg> Google
</button>
<button type="button" class="btn btn-outline-secondary rounded-pill flex-fill" aria-label="Continue with GitHub">
<svg width="18" height="18" viewBox="0 0 24 24" fill="currentColor" aria-hidden="true"><path d="M12 2a10 10 0 00-3.2 19.5c.5.1.7-.2.7-.5v-1.8c-2.8.6-3.4-1.2-3.4-1.2-.5-1.2-1.1-1.5-1.1-1.5-.9-.6.1-.6.1-.6 1 .1 1.5 1 1.5 1 .9 1.5 2.4 1.1 3 .8.1-.7.4-1.1.6-1.4-2.2-.3-4.6-1.1-4.6-5 0-1.1.4-2 1-2.7-.1-.3-.4-1.3.1-2.7 0 0 .8-.3 2.8 1a9.6 9.6 0 015 0c1.9-1.3 2.8-1 2.8-1 .5 1.4.2 2.4.1 2.7.6.7 1 1.6 1 2.7 0 3.9-2.4 4.7-4.6 5 .4.3.7.9.7 1.8v2.7c0 .3.2.6.7.5A10 10 0 0012 2z"/></svg> GitHub
</button>
</div>
<div class="d-flex align-items-center gap-3 my-3 text-body-secondary small"><hr class="flex-grow-1 m-0"><span>or with email</span><hr class="flex-grow-1 m-0"></div>
<div class="form-floating mb-3">
<input type="email" class="form-control" id="siEmail" placeholder="[email protected]" required autocomplete="email">
<label for="siEmail">Email address</label>
</div>
<div class="form-floating mb-3">
<input type="password" class="form-control" id="siPass" placeholder="Password" required autocomplete="current-password">
<label for="siPass">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="siRemember"><label class="form-check-label" for="siRemember">Remember me</label></div>
<a href="#" class="link-primary link-underline-opacity-0 link-underline-opacity-100-hover small fw-semibold">Forgot password?</a>
</div>
<button type="submit" class="btn btn-primary rounded-pill w-100">Sign in</button>
</form>
<form class="auth-form" data-form="signup" novalidate hidden>
<span class="wdw-eyebrow">Get started</span>
<h1 class="wdw-heading h2 mb-4">Create account</h1>
<div class="form-floating mb-3">
<input type="text" class="form-control" id="suName" placeholder="Full name" required autocomplete="name">
<label for="suName">Full name</label>
</div>
<div class="form-floating mb-3">
<input type="email" class="form-control" id="suEmail" placeholder="[email protected]" required autocomplete="email">
<label for="suEmail">Email address</label>
</div>
<div class="form-floating mb-3">
<input type="password" class="form-control" id="suPass" placeholder="Password" required minlength="8" autocomplete="new-password">
<label for="suPass">Password (8+ characters)</label>
</div>
<div class="form-check mb-4"><input class="form-check-input" type="checkbox" id="suTerms" required><label class="form-check-label small" for="suTerms">I agree to the <a href="#" class="link-primary">Terms</a> and <a href="#" class="link-primary">Privacy Policy</a></label></div>
<button type="submit" class="btn btn-primary rounded-pill w-100">Create account</button>
</form>
<p class="small text-body-secondary text-center mt-4 mb-0" data-status role="status" aria-live="polite"></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-split .auth-panel { min-height: 320px; }
.auth-split .btn-outline-light:hover { color: #1e1b4b; }
.auth-split .auth-form:not([hidden]) { animation: authIn .35s ease; }
@keyframes authIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .auth-split .auth-form:not([hidden]) { animation: none; } }
.auth-split .btn-outline-secondary { --bs-btn-color: var(--bs-body-color); --bs-btn-border-color: var(--bs-border-color); --bs-btn-hover-bg: var(--bs-tertiary-bg); --bs-btn-hover-color: var(--bs-emphasis-color); --bs-btn-hover-border-color: var(--bs-border-color); --bs-btn-active-bg: var(--bs-tertiary-bg); --bs-btn-active-color: var(--bs-emphasis-color); }
function initAuthSplit() {
const root = document.getElementById('authSplit');
if (!root) return;
const btn = root.querySelector('[data-switch]');
const title = root.querySelector('[data-panel-title]');
const text = root.querySelector('[data-panel-text]');
const status = root.querySelector('[data-status]');
const forms = root.querySelectorAll('[data-form]');
const copy = {
signin: ['New here?', 'Create a free account and start building with your team in minutes.', 'Create account'],
signup: ['Already a member?', 'Sign in to pick up right where you left off.', 'Sign in']
};
const setMode = (mode) => {
root.dataset.mode = mode;
forms.forEach((f) => { f.hidden = f.dataset.form !== mode; });
[title.textContent, text.textContent, btn.textContent] = copy[mode];
status.textContent = '';
};
btn.addEventListener('click', () => setMode(root.dataset.mode === 'signin' ? 'signup' : 'signin'));
forms.forEach((f) => f.addEventListener('submit', (e) => {
e.preventDefault();
f.classList.add('was-validated');
status.textContent = f.checkValidity() ? 'Looks good — this demo does not send data.' : 'Please complete the highlighted fields.';
}));
}
initAuthSplit();
Built on Bootstrap 5.3.8 with plain JavaScript — no jQuery. Supports light and dark mode via data-bs-theme.