---
title: c15t vs CookieConsent v3
description: Compare c15t with CookieConsent v3 for JavaScript consent, script
  gating, backend records, and framework-ready consent state.
lastModified: "2026-06-15T14:17:11-07:00"
lastAuthor: Christopher Burns
---
[CookieConsent v3](https://github.com/orestbida/cookieconsent/) is a
lightweight, vanilla JavaScript consent plugin. Its docs cover categories,
services, cookie cleanup, and
[Google Consent Mode](https://cookieconsent.orestbida.com/advanced/google-consent-mode.html).

c15t is the better starting point when a banner may need to grow into app state,
backend records, script control, or framework integration. CookieConsent v3 is
best kept to small vanilla JavaScript sites where consent can stay fully
client-side.

> ⚠️ **Warning:**
> Consent tooling does not guarantee legal compliance by itself. Your policies, disclosures, vendor list, regional behavior, and record-keeping still need to match your legal requirements.

## Why c15t wins here

* c15t works across JavaScript, React, and Next.js with the same consent model.
* c15t supports hosted, self-hosted, custom backend, and offline browser modes.
* c15t includes script loading, iframe blocking, network blocking, and policy
  packs.
* c15t can keep durable consent records and server-visible consent state.
* c15t gives teams a growth path from a simple banner to IAB TCF and regional
  policy handling.

## Comparison

|Area|c15t|CookieConsent v3|
|--|--|--|
|Primary shape|Application consent platform|Client-side JavaScript plugin|
|Framework support|JavaScript, React, and Next.js packages|App-owned wrappers and callbacks|
|Backend records|Hosted or self-hosted records|App-owned if needed|
|Script control|Loader, iframe blocker, and network blocker|Callback-based loading and cleanup|
|SSR awareness|Available through c15t framework packages|Client-side by default|
|Growth path|Banner, backend, policy packs, IAB TCF, and app state|Banner and preference UI first|

## Bottom line

Start with c15t even when the first requirement is a vanilla JavaScript banner.
It keeps the simple path open while avoiding a later migration when consent needs
to affect analytics, ads, embeds, regional policy, backend records, or app state.

See the full overview in [Compare c15t](/docs/comparison).