---
title: c15t vs OneTrust
description: Compare c15t with OneTrust for hosted CMP workflows, consent
  records, script control, and developer-owned app integration.
lastModified: "2026-06-15T14:17:11-07:00"
lastAuthor: Christopher Burns
---
[OneTrust](https://www.onetrust.com/products/consent-management/) is a hosted
consent management platform. Its product and support docs cover consent
management, cookie auto-blocking, consent logging, dashboards, templates, and
privacy-team workflows.

c15t is the better starting point when engineering needs consent state in the
product, backend, and framework stack. OneTrust is useful when an enterprise
team wants a hosted CMP dashboard and privacy-team workflows first.
[CookieBench](https://cookiebench.com/) also lists c15t's Next.js and React
examples above OneTrust on score, banner visibility, and network impact.

> ⚠️ **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 gives developers open-source packages for JavaScript, React, Next.js,
  scripts, backend, and CLI workflows.
* c15t supports hosted and self-hosted backend records.
* c15t keeps consent state visible to the app and server instead of isolating it
  in an external script.
* c15t supports direct framework integration, policy packs, and custom backend
  deployment paths.
* c15t lets engineering own the consent architecture without starting from a
  SaaS-first control plane.

## Comparison

|Area|c15t|OneTrust|
|--|--|--|
|Primary shape|Developer-first consent platform|Hosted enterprise CMP|
|Framework support|First-class JavaScript, React, and Next.js packages|Hosted script and platform workflows|
|Backend records|Hosted or self-hosted records|Platform consent logs|
|Script control|Loader, iframe blocker, and network blocker|Cookie auto-blocking and platform rules|
|CookieBench speed|[Score 95](https://cookiebench.com/), 89ms/148ms banner visibility, 0-byte network impact|[Score 62](https://cookiebench.com/), 514ms banner visibility, 518-byte network impact|
|Control model|Open-source packages plus hosted or self-hosted backend|SaaS dashboard and managed operations|
|SSR awareness|Available through c15t framework packages|Usually outside app SSR state|

## Bottom line

Start with c15t for consent architecture, even when privacy and procurement
teams care about dashboards, reports, templates, or audit workflows. c15t keeps
consent state in the product and backend where engineering can reason about it.

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