---
title: c15t vs Osano
description: Compare c15t with Osano CookieConsent and Osano's hosted CMP for
  developer-owned consent, records, policy, and app integration.
lastModified: "2026-06-15T14:17:11-07:00"
lastAuthor: Christopher Burns
---
[Osano CookieConsent](https://github.com/osano/cookieconsent/) has two common
meanings: the open-source JavaScript plugin and Osano's hosted CMP. The
open-source README notes that production use often needs GeoIP lookups, regional
consent rules, callbacks, saved consents, and script loading. Osano's hosted CMP
adds a commercial control plane and privacy-operations workflow.

c15t is the better starting point when you want a developer-owned consent stack
that can be hosted, self-hosted, or wired into your own backend. Osano is useful
when a hosted commercial CMP and privacy-operations workflow are the priority.
[CookieBench](https://cookiebench.com/) also lists c15t's Next.js and React
examples above Osano 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 supports JavaScript, React, Next.js, scripts, backend, and CLI workflows.
* c15t can keep durable consent records in hosted or self-hosted modes.
* c15t gives engineering teams direct framework integration and server-visible
  consent state.
* c15t supports policy packs, script loading, iframe blocking, and network
  blocking from one consent layer.
* c15t keeps deployment choices open instead of centering the workflow on a
  SaaS-first dashboard.

## Comparison

|Area|c15t|Osano|
|--|--|--|
|Primary shape|Developer-first consent platform|Open-source plugin or hosted CMP|
|Framework support|First-class JavaScript, React, and Next.js packages|Plugin script or hosted script|
|Backend records|Hosted or self-hosted records|Hosted CMP records or app-owned plugin storage|
|Regional policy|Policy packs and backend state|Hosted rules or app-owned plugin config|
|Script control|Loader, iframe blocker, and network blocker|Hosted CMP or plugin callbacks|
|CookieBench speed|[Score 95](https://cookiebench.com/), 89ms/148ms banner visibility, 0-byte network impact|[Score 72](https://cookiebench.com/), 214ms banner visibility, 253-byte network impact|
|Control model|Open-source packages and deployable backend paths|Commercial CMP workflow for hosted use|

## Bottom line

Start with c15t when you want consent to live in your application and backend
architecture. It covers the simple banner path while keeping records, policy,
framework APIs, and custom backend options available.

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