---
title: c15t vs Didomi
description: Choose c15t for native framework components, open-source consent
  logic and backend ownership. Compare Didomi's SDKs, notice console and
  experiments.
group: reference
lastModified: "2026-10-11T22:43:08+01:00"
---
## Choose c15t for consent that follows your product workflow

c15t is the stronger fit when your developers want to own the consent interface, vendor rules and backend implementation. Changes can follow the same code review and release process as the application.

Didomi combines a shared notice console with SDKs, APIs and consent analytics. It also supports React and custom interfaces, so developer access is common to both products.

## Let Inth run your consent backend

You need a backend to store consent records outside the visitor's browser. [Inth](https://inth.com) builds c15t and hosts that backend and its database for c15t's framework integrations, browser package and headless API. Your consent interface and vendor controls stay in your application.

Connect your application to an Inth project with the [framework setup guide](/docs/frameworks). Inth also serves your consent policy, so static sites can use it without their own application server.

Offline mode keeps choices on the visitor's device and creates no remote consent records. Use it for development and tests, not production.

You can [self-host the c15t backend](/docs/self-host/overview) when your team needs to operate the service. Your team then owns the database, backups, updates and availability.

## Compare the work your team controls

|What you need|c15t|Didomi|
|--|--|--|
|Integrate with application code|Native adapters across web frameworks|Hosted Web SDK and a React component|
|Build a custom interface|Themes, component parts and headless APIs|Notice customisation and APIs for your own UI|
|Read vendor and purpose choices|Framework state and vendor controls|Web SDK methods and events|
|Choose the Next.js response|Streamed, awaited or browser paths|Hosted SDK integration. Test the required server flow separately|
|Run the backend yourself|Open-source backend with your own database|Didomi platform and consent APIs|
|Keep consent evidence|Inth hosts the backend and stores records in its database. Self-hosting is optional|Consent events and history|
|Compare banner variants|Presentation experiments with your flags or built-in assignment|A/B tests and consent analytics|
|Publish notices from a shared console|Inth service workflow. No equivalent business console bundled in the packages|Console for marketing, legal and engineering teams|

Sources: [Didomi platform](https://www.didomi.io/consent-management-platform), [Web SDK and React setup](https://developers.didomi.io/cmp/web-sdk/getting-started), [JavaScript API](https://developers.didomi.io/cmp/web-sdk/reference/api) and [custom-UI consent events](https://developers.didomi.io/api-and-platform/consents/events).

## Use one consent state across the product

c15t lets your privacy controls, gated content and registered vendors use the same state. A designer can change the interface while a developer checks its behaviour in application tests.

Start with the supplied components or build a [headless interface](/docs/frameworks/react/headless). Use [vendor controls](/docs/frameworks/react/vendor-consent) to connect an individual service to the visitor's choices.

Didomi's React component loads its SDK and receives notice configuration from the Console. c15t gives you native components plus source code for the consent engine.

## Keep experiments in your current release process

Use your feature-flag tool to assign c15t [banner variants](/docs/guides/banner-experiments). The variant travels with impressions and choices, so you can compare outcomes.

The experiment changes presentation and theme. The policy, categories and policy text stay fixed.

Didomi also has A/B tests. c15t's advantage for application teams is the ability to define the experiment in product code and choose the record backend.

## What c15t does not include

* **Didomi's complete business console.** The open-source packages do not bundle the same notice publication and team administration workflow.
* **A ready-made cross-device rollout.** Backend identity links need an application flow. Do not assume full parity with Didomi's service.
* **An automatic record migration.** Your team must map vendor identifiers, purposes, policy versions and previous choices.
* **A legal guarantee for an experiment.** Presentation checks flag some issues. They do not certify a layout.

In the Next.js App Router, the default streamed [rendering path](/docs/frameworks/next/rendering) sends the banner in the server response, before hydration, without holding the page.

## Test the workflow you will use each week

Choose c15t when native UI and source ownership are central to the product. Didomi is a strong option when a shared operational console is the main requirement.

Build a trial with [Inth and the framework guide](/docs/frameworks). Change one notice translation and one vendor rule, then check when a visitor with saved choices sees the result.

Compare the review, deployment and record workflow. Finish with the [consent verification checks](/docs/guides/verify-consent).

Sources checked on 6 October 2026. The release covered here is an alpha. Compare commercial terms for the same properties, traffic and support needs.