1. Paste the snippet
Drop the generated code just before the closing body tag on every page. It has no dependencies and adds no network requests.
Free tool
Cookie Consent Banner Generator
Pick your cookie categories, write the copy, choose a look — and copy out a dependency-free consent banner you can paste into any site. It stores the visitor's choice, keeps tagged scripts blocked until their category is granted, and can be reopened from a footer link.
Your consent banner
Paste this just before the closing body tag, on every page.
<!-- Cookie consent banner - paste this just before </body> -->
<script>
(function () {
var CFG = {
"storageKey": "cookie_consent",
"position": "bar",
"theme": "light",
"accent": "#a6144d",
"title": "We use cookies",
"message": "We use cookies to run this site, understand how it is used and improve it. You can accept everything, reject what is optional, or choose per category.",
"policyUrl": "https://example.com/privacy",
"policyLabel": "Read our privacy policy",
"accept": "Accept all",
"reject": "Reject optional",
"prefs": "Preferences",
"save": "Save choices",
"categories": [
{
"id": "necessary",
"label": "Strictly necessary",
"desc": "Required for the site to work. Always on and never asks for consent.",
"required": true
},
{
"id": "analytics",
"label": "Analytics",
"desc": "Measures how the site is used so it can be improved.",
"required": false
},
{
"id": "marketing",
"label": "Marketing",
"desc": "Used to personalise ads and measure campaigns.",
"required": false
}
]
};
var KEY = CFG.storageKey;
var doc = document;
var box = null;
function read() {
try { return JSON.parse(localStorage.getItem(KEY) || 'null'); } catch (e) { return null; }
}
function save(consent) {
consent.necessary = true;
consent.date = new Date().toISOString();
try { localStorage.setItem(KEY, JSON.stringify(consent)); } catch (e) {}
unblock(consent);
window.dispatchEvent(new CustomEvent('consentchange', { detail: consent }));
if (typeof window.onConsentChange === 'function') window.onConsentChange(consent);
}
// Scripts the site parked behind a category run only once it is granted. Park
// one by giving its tag type="text/plain" and data-consent="analytics".
// (Deliberately described, not shown: a literal script tag written out here
// would close this one early and truncate everything below it.)
function unblock(consent) {
var parked = doc.querySelectorAll('script[type="text/plain"][data-consent]');
for (var i = 0; i < parked.length; i++) {
var old = parked[i];
if (!consent[old.getAttribute('data-consent')]) continue;
var next = doc.createElement('script');
for (var a = 0; a < old.attributes.length; a++) {
var at = old.attributes[a];
if (at.name !== 'type' && at.name !== 'data-consent') next.setAttribute(at.name, at.value);
}
next.text = old.text;
old.parentNode.replaceChild(next, old);
}
}
function styles() {
var dark = CFG.theme === 'dark';
var bg = dark ? '#161622' : '#ffffff';
var fg = dark ? '#f4f4f8' : '#141a47';
var muted = dark ? 'rgba(244,244,248,.72)' : 'rgba(20,26,71,.7)';
var line = dark ? 'rgba(255,255,255,.14)' : 'rgba(20,26,71,.12)';
var el = doc.createElement('style');
el.textContent = [
'.cc-root{position:fixed;z-index:2147483000;font:400 14px/1.55 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:' + fg + ';box-sizing:border-box}',
'.cc-root *,.cc-root *::before,.cc-root *::after{box-sizing:inherit}',
'.cc-card{background:' + bg + ';border:1px solid ' + line + ';box-shadow:0 18px 48px rgba(0,0,0,.18);border-radius:14px;padding:20px}',
'.cc-bar{left:0;right:0;bottom:0;padding:16px}',
'.cc-bar .cc-card{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;max-width:1120px;margin:0 auto}',
'.cc-box{left:16px;bottom:16px;max-width:400px}',
'.cc-modal{inset:0;display:flex;align-items:center;justify-content:center;padding:16px;background:rgba(10,10,20,.5)}',
'.cc-modal .cc-card{max-width:520px;width:100%}',
'.cc-title{margin:0 0 6px;font-size:16px;font-weight:700}',
'.cc-text{margin:0;color:' + muted + '}',
'.cc-text a{color:' + CFG.accent + ';font-weight:600}',
'.cc-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}',
'.cc-bar .cc-actions{margin-top:0}',
'.cc-btn{appearance:none;cursor:pointer;border:1px solid ' + line + ';border-radius:999px;padding:9px 18px;font:600 14px inherit;background:transparent;color:' + fg + '}',
'.cc-btn-main{background:' + CFG.accent + ';border-color:' + CFG.accent + ';color:#fff}',
'.cc-btn:focus-visible{outline:2px solid ' + CFG.accent + ';outline-offset:2px}',
'.cc-cats{display:none;margin:14px 0 0;padding:14px 0 0;border-top:1px solid ' + line + '}',
'.cc-cats.cc-open{display:block}',
'.cc-cat{display:flex;gap:10px;align-items:flex-start;margin-bottom:12px}',
'.cc-cat input{margin:3px 0 0;accent-color:' + CFG.accent + '}',
'.cc-cat strong{display:block;font-size:14px}',
'.cc-cat span{display:block;color:' + muted + ';font-size:13px}',
'@media(max-width:640px){.cc-bar .cc-card{display:block}.cc-bar .cc-actions{margin-top:14px}.cc-btn{flex:1 1 auto}}'
].join('');
doc.head.appendChild(el);
}
function build() {
var stored = read() || {};
var root = doc.createElement('div');
root.className = 'cc-root cc-' + CFG.position;
root.setAttribute('role', CFG.position === 'modal' ? 'dialog' : 'region');
root.setAttribute('aria-label', CFG.title);
if (CFG.position === 'modal') root.setAttribute('aria-modal', 'true');
var card = doc.createElement('div');
card.className = 'cc-card';
var copy = doc.createElement('div');
var h = doc.createElement('p');
h.className = 'cc-title';
h.textContent = CFG.title;
var p = doc.createElement('p');
p.className = 'cc-text';
p.textContent = CFG.message + ' ';
if (CFG.policyUrl) {
var link = doc.createElement('a');
link.href = CFG.policyUrl;
link.textContent = CFG.policyLabel;
p.appendChild(link);
}
copy.appendChild(h);
copy.appendChild(p);
var cats = doc.createElement('div');
cats.className = 'cc-cats';
var inputs = {};
for (var i = 0; i < CFG.categories.length; i++) {
var c = CFG.categories[i];
var row = doc.createElement('label');
row.className = 'cc-cat';
var cb = doc.createElement('input');
cb.type = 'checkbox';
cb.checked = c.required || stored[c.id] === true;
cb.disabled = !!c.required;
var txt = doc.createElement('div');
var name = doc.createElement('strong');
name.textContent = c.label;
var desc = doc.createElement('span');
desc.textContent = c.desc;
txt.appendChild(name);
txt.appendChild(desc);
row.appendChild(cb);
row.appendChild(txt);
cats.appendChild(row);
inputs[c.id] = cb;
}
copy.appendChild(cats);
var actions = doc.createElement('div');
actions.className = 'cc-actions';
function button(label, main, onClick) {
var b = doc.createElement('button');
b.type = 'button';
b.className = 'cc-btn' + (main ? ' cc-btn-main' : '');
b.textContent = label;
b.addEventListener('click', onClick);
actions.appendChild(b);
return b;
}
function decide(granted) {
var consent = {};
for (var i = 0; i < CFG.categories.length; i++) {
var c = CFG.categories[i];
consent[c.id] = c.required ? true : granted === null ? !!inputs[c.id].checked : granted;
}
save(consent);
close();
}
var prefsBtn = button(CFG.prefs, false, function () {
var open = cats.classList.toggle('cc-open');
prefsBtn.setAttribute('aria-expanded', open ? 'true' : 'false');
saveBtn.style.display = open ? '' : 'none';
});
prefsBtn.setAttribute('aria-expanded', 'false');
button(CFG.reject, false, function () { decide(false); });
button(CFG.accept, true, function () { decide(true); });
var saveBtn = button(CFG.save, false, function () { decide(null); });
saveBtn.style.display = 'none';
card.appendChild(copy);
card.appendChild(actions);
root.appendChild(card);
doc.body.appendChild(root);
box = root;
}
function close() {
if (box && box.parentNode) box.parentNode.removeChild(box);
box = null;
}
function open() {
if (!box) build();
}
function start() {
styles();
var stored = read();
if (stored) unblock(stored);
else build();
window.showConsentPreferences = open;
}
if (doc.readyState === 'loading') doc.addEventListener('DOMContentLoaded', start);
else start();
})();
</script>How to use it
Three steps to a working banner
2. Park your tracking scripts
Change a tracking tag's type to text/plain and add data-consent="analytics". The banner runs it the moment that category is granted — and never before.
3. Let people change their mind
Add a footer link that calls window.showConsentPreferences() so visitors can reopen the panel. Every decision also fires a consentchange event you can listen for.
FAQ
About cookie consent
Is this banner enough for GDPR compliance?
It gives you the mechanics regulators expect: no optional cookies before consent, reject as easy as accept, per-category choice, and a way to change your mind later. Compliance also depends on what you actually run, what your policy says and where your visitors are, so treat the generated code as a solid starting point rather than legal advice.
How do I stop scripts running before consent?
Give the script tag type="text/plain" and a data-consent attribute naming its category. The browser will not execute it, and the banner rewrites it into a real script tag as soon as that category is granted — on this visit or on the next one, from the stored decision.
Where is the visitor's choice stored?
In localStorage, under the key you choose, as a small JSON object with one flag per category plus the date. No cookie is set for the banner itself and nothing is sent to a server, so it works on a purely static site.
Can I restyle it?
Yes. The position, theme and accent colour are options here, and every element in the generated CSS is prefixed with cc- so you can override the rules from your own stylesheet without touching the snippet.
Do I still need a consent management platform?
For one site with a handful of categories, this snippet is usually enough. Once you need consent logs, several domains, or analytics that respects the choice automatically, PulsePanda's built-in consent manager takes over the whole job.
Related
More from PulsePanda
Consent that your analytics actually respects
PulsePanda ships with a consent manager built in — cookieless by default, and it stops collecting the moment someone opts out. No second vendor, no glue code.
Start for free