Bootstrap 5 E-commerce Filter Sidebar with Accordion
A collapsible e-commerce filter sidebar with category checkboxes, a price slider, size chips and rating options, plus a live result count.
<section class="wdw-stage">
<svg width="0" height="0" style="position:absolute" aria-hidden="true" focusable="false"><defs>
<symbol id="flStarF" viewBox="0 0 24 24" fill="currentColor" stroke="currentColor" stroke-width="1.5" stroke-linejoin="round"><path d="m12 3 2.7 5.6 6.1.9-4.4 4.3 1 6.1L12 17l-5.4 2.9 1-6.1L3.2 9.500l6.1-.9z"/></symbol>
<symbol id="flStarE" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linejoin="round"><path d="m12 3 2.7 5.6 6.1.9-4.4 4.3 1 6.1L12 17l-5.4 2.9 1-6.1L3.2 9.500l6.1-.9z"/></symbol>
</defs></svg>
<div class="container" style="max-width: 620px">
<aside class="wdw-card p-3 p-md-4" aria-label="Product filters">
<div class="d-flex justify-content-between align-items-center mb-2 px-2">
<h2 class="wdw-heading h5 mb-0">Filters <span class="badge rounded-pill bg-primary ms-1 d-none" id="flCount">0</span></h2>
<button type="button" class="btn btn-link btn-sm link-primary text-decoration-none fw-semibold p-0" id="flClear" style="min-height:0">Clear all</button>
</div>
<div class="d-flex flex-wrap gap-2 px-2 mb-2" id="flChips" aria-label="Active filters"></div>
<div class="accordion accordion-flush" id="flAcc">
<div class="accordion-item bg-transparent">
<h3 class="accordion-header"><button class="accordion-button bg-transparent shadow-none fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#flCat" aria-expanded="true" aria-controls="flCat">Categories</button></h3>
<div id="flCat" class="accordion-collapse collapse show"><div class="accordion-body pt-0 d-grid gap-2">
<div class="form-check d-flex align-items-center gap-2 ps-0"><input class="form-check-input ms-0 mt-0" type="checkbox" id="cat0" name="cat" checked><label class="form-check-label flex-grow-1" for="cat0">Electronics</label><span class="wdw-muted small">128</span></div>
<div class="form-check d-flex align-items-center gap-2 ps-0"><input class="form-check-input ms-0 mt-0" type="checkbox" id="cat1" name="cat"><label class="form-check-label flex-grow-1" for="cat1">Home & Kitchen</label><span class="wdw-muted small">86</span></div>
<div class="form-check d-flex align-items-center gap-2 ps-0"><input class="form-check-input ms-0 mt-0" type="checkbox" id="cat2" name="cat" checked><label class="form-check-label flex-grow-1" for="cat2">Fashion</label><span class="wdw-muted small">214</span></div>
<div class="form-check d-flex align-items-center gap-2 ps-0"><input class="form-check-input ms-0 mt-0" type="checkbox" id="cat3" name="cat"><label class="form-check-label flex-grow-1" for="cat3">Sports & Outdoors</label><span class="wdw-muted small">57</span></div>
<div class="form-check d-flex align-items-center gap-2 ps-0"><input class="form-check-input ms-0 mt-0" type="checkbox" id="cat4" name="cat"><label class="form-check-label flex-grow-1" for="cat4">Beauty</label><span class="wdw-muted small">43</span></div>
</div></div>
</div>
<div class="accordion-item bg-transparent">
<h3 class="accordion-header"><button class="accordion-button bg-transparent shadow-none fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#flPrice" aria-expanded="true" aria-controls="flPrice">Price</button></h3>
<div id="flPrice" class="accordion-collapse collapse show"><div class="accordion-body pt-0">
<label for="flRange" class="form-label small wdw-muted">Up to <strong class="text-body-emphasis" id="flPriceVal">$250</strong></label>
<input type="range" class="form-range" id="flRange" min="10" max="500" step="10" value="250">
<div class="d-flex justify-content-between small wdw-muted"><span>$10</span><span>$500</span></div>
</div></div>
</div>
<div class="accordion-item bg-transparent">
<h3 class="accordion-header"><button class="accordion-button bg-transparent shadow-none fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#flSize" aria-expanded="true" aria-controls="flSize">Size</button></h3>
<div id="flSize" class="accordion-collapse collapse show"><div class="accordion-body pt-0 d-flex flex-wrap gap-2">
<input type="checkbox" class="btn-check" id="szXS" name="size"><label class="btn btn-outline-secondary rounded-pill px-3" for="szXS">XS</label>
<input type="checkbox" class="btn-check" id="szS" name="size"><label class="btn btn-outline-secondary rounded-pill px-3" for="szS">S</label>
<input type="checkbox" class="btn-check" id="szM" name="size" checked><label class="btn btn-outline-secondary rounded-pill px-3" for="szM">M</label>
<input type="checkbox" class="btn-check" id="szL" name="size"><label class="btn btn-outline-secondary rounded-pill px-3" for="szL">L</label>
<input type="checkbox" class="btn-check" id="szXL" name="size"><label class="btn btn-outline-secondary rounded-pill px-3" for="szXL">XL</label>
</div></div>
</div>
<div class="accordion-item bg-transparent border-bottom-0">
<h3 class="accordion-header"><button class="accordion-button collapsed bg-transparent shadow-none fw-semibold" type="button" data-bs-toggle="collapse" data-bs-target="#flRate" aria-expanded="false" aria-controls="flRate">Rating</button></h3>
<div id="flRate" class="accordion-collapse collapse"><div class="accordion-body pt-0 d-grid gap-2">
<div class="form-check ps-0 d-flex align-items-center gap-2"><input class="form-check-input ms-0 mt-0" type="radio" name="rate" id="rt4"><label class="form-check-label d-flex align-items-center gap-2" for="rt4"><span class="text-warning d-inline-flex" aria-hidden="true"><svg width="16" height="16" aria-hidden="true"><use href="#flStarF"/></svg><svg width="16" height="16" aria-hidden="true"><use href="#flStarF"/></svg><svg width="16" height="16" aria-hidden="true"><use href="#flStarF"/></svg><svg width="16" height="16" aria-hidden="true"><use href="#flStarF"/></svg><svg width="16" height="16" aria-hidden="true"><use href="#flStarE"/></svg></span><span>4.0 & up</span></label></div>
<div class="form-check ps-0 d-flex align-items-center gap-2"><input class="form-check-input ms-0 mt-0" type="radio" name="rate" id="rt3"><label class="form-check-label d-flex align-items-center gap-2" for="rt3"><span class="text-warning d-inline-flex" aria-hidden="true"><svg width="16" height="16" aria-hidden="true"><use href="#flStarF"/></svg><svg width="16" height="16" aria-hidden="true"><use href="#flStarF"/></svg><svg width="16" height="16" aria-hidden="true"><use href="#flStarF"/></svg><svg width="16" height="16" aria-hidden="true"><use href="#flStarE"/></svg><svg width="16" height="16" aria-hidden="true"><use href="#flStarE"/></svg></span><span>3.0 & up</span></label></div>
<div class="form-check ps-0 d-flex align-items-center gap-2"><input class="form-check-input ms-0 mt-0" type="radio" name="rate" id="rt2"><label class="form-check-label d-flex align-items-center gap-2" for="rt2"><span class="text-warning d-inline-flex" aria-hidden="true"><svg width="16" height="16" aria-hidden="true"><use href="#flStarF"/></svg><svg width="16" height="16" aria-hidden="true"><use href="#flStarF"/></svg><svg width="16" height="16" aria-hidden="true"><use href="#flStarE"/></svg><svg width="16" height="16" aria-hidden="true"><use href="#flStarE"/></svg><svg width="16" height="16" aria-hidden="true"><use href="#flStarE"/></svg></span><span>2.0 & up</span></label></div>
</div></div>
</div>
</div>
<button type="button" class="btn btn-primary rounded-pill w-100 mt-3" id="flApply"><span>Show <span id="flResults">584</span> results</span></button>
<p class="small text-center wdw-muted mt-2 mb-0" id="flStatus" role="status" aria-live="polite"></p>
</aside>
</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 */
#flAcc { --wdw-ctl: color-mix(in srgb, var(--bs-body-color) 55%, transparent);
--bs-accordion-btn-icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%234f46e5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m2 5 6 6 6-6'/%3E%3C/svg%3E");
--bs-accordion-btn-active-icon: var(--bs-accordion-btn-icon); }
[data-bs-theme="dark"] #flAcc { --bs-accordion-btn-icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23a5b4fc' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m2 5 6 6 6-6'/%3E%3C/svg%3E"); }
#flAcc .accordion-item { border-color: var(--bs-border-color-translucent); }
#flAcc .accordion-button { padding-inline: .5rem; font-size: 1rem; color: var(--bs-emphasis-color); }
#flAcc .accordion-body { padding-inline: .5rem; }
#flAcc .accordion-button:not(.collapsed) { color: var(--bs-primary); }
#flAcc .form-check-input:not(:checked) { border-color: var(--wdw-ctl); border-width: 1.5px; }
#flAcc .btn-outline-secondary { --bs-btn-color: var(--bs-body-color); --bs-btn-border-color: var(--wdw-ctl); --bs-btn-hover-color: var(--bs-emphasis-color); --bs-btn-hover-bg: var(--bs-secondary-bg); --bs-btn-hover-border-color: var(--wdw-ctl); }
.btn-check:checked + .btn-outline-secondary { background: var(--bs-primary); border-color: var(--bs-primary); color: #fff; }
[data-bs-theme="dark"] .btn-check:checked + .btn-outline-secondary { color: #0f1117; }
.btn-check:focus-visible + .btn { box-shadow: 0 0 0 .25rem var(--bs-focus-ring-color); }
.form-range::-webkit-slider-thumb { background: var(--bs-primary); }
.form-range::-moz-range-thumb { background: var(--bs-primary); }
.fl-chip { display: inline-flex; align-items: center; gap: .35rem; min-height: 32px; padding: .2rem .5rem .2rem .85rem; border: 0; border-radius: 2rem; background: var(--bs-primary-bg-subtle); color: var(--bs-primary-text-emphasis); font-size: .8125rem; font-weight: 600; }
.fl-chip:hover { background: var(--bs-primary-border-subtle); }
.fl-chip:focus-visible { outline: 2px solid var(--bs-primary); outline-offset: 2px; }
(function () {
function initFilters() {
var root = document.getElementById('flAcc');
if (!root) return;
var badge = document.getElementById('flCount'), clear = document.getElementById('flClear');
var range = document.getElementById('flRange'), val = document.getElementById('flPriceVal');
var results = document.getElementById('flResults'), chips = document.getElementById('flChips');
var apply = document.getElementById('flApply'), status = document.getElementById('flStatus');
var scope = root.closest('aside');
var timer;
function labelOf(i) {
var l = scope.querySelector('label[for="' + i.id + '"]');
var t = l ? l.textContent.replace(/\s+/g, ' ').trim() : i.id;
return i.name === 'size' ? 'Size ' + t : t;
}
function renderChips() {
chips.textContent = '';
scope.querySelectorAll('input[type=checkbox]:checked, input[type=radio]:checked').forEach(function (i) {
chips.appendChild(chip(labelOf(i), i.id));
});
if (+range.value < 500) chips.appendChild(chip('Up to $' + range.value, 'flRange'));
}
function chip(text, id) {
var b = document.createElement('button');
b.type = 'button'; b.className = 'fl-chip'; b.dataset.for = id;
b.setAttribute('aria-label', 'Remove filter: ' + text);
b.innerHTML = '<span></span><svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" aria-hidden="true"><path d="M6 6l12 12M18 6 6 18"/></svg>';
b.firstChild.textContent = text;
return b;
}
function update() {
var n = scope.querySelectorAll('input[type=checkbox]:checked, input[type=radio]:checked').length + (+range.value < 500 ? 1 : 0);
badge.textContent = n;
badge.classList.toggle('d-none', n === 0);
val.textContent = '$' + range.value;
results.textContent = Math.max(12, Math.round(584 / (1 + n * 0.55) * (range.value / 500 * 0.5 + 0.5)));
renderChips();
}
scope.addEventListener('input', update);
scope.addEventListener('change', update);
chips.addEventListener('click', function (e) {
var b = e.target.closest('.fl-chip');
if (!b) return;
var el = document.getElementById(b.dataset.for);
if (el.id === 'flRange') el.value = 500; else el.checked = false;
update();
});
if (clear) clear.addEventListener('click', function () {
scope.querySelectorAll('input[type=checkbox], input[type=radio]').forEach(function (i) { i.checked = false; });
range.value = 500;
update();
});
if (apply) apply.addEventListener('click', function () {
status.textContent = 'Showing ' + results.textContent + ' results.';
clearTimeout(timer);
timer = setTimeout(function () { status.textContent = ''; }, 3000);
});
update();
}
initFilters();
})();
Built on Bootstrap 5.3.8 with plain JavaScript — no jQuery. Supports light and dark mode via data-bs-theme.
