c15t
c15t is an open-source project for adding consent controls to applications through components and APIs.
What c15t is
c15t is an open-source project for adding consent controls to applications through components and APIs. It covers consent banners, preference centres, consent state, and script loading, with options to use a managed backend or run one on your own infrastructure. The script loader can check consent before loading eligible scripts, remove scripts after consent is revoked, or send updates to scripts that remain loaded. Documented integrations include Google Tag Manager, Google Tag, Meta Pixel, analytics tools, ad pixels, and chat widgets. React and Next.js packages include consent-aware Google Maps and YouTube components. Teams can customize themes, styling, translations, and headless interfaces; the homepage describes support for more than 30 languages and right-to-left text. It also describes regional opt-in, opt-out, or no-banner rules, IAB TCF 2.4, and Google Consent Mode v2 signals. The self-hosted backend provides consent storage, geolocation, audit logging, and policy management. The open-source packages cost nothing under the Apache 2.0 license. c15t provides implementation tools, not legal advice; teams remain responsible for choosing consent rules.
Good
- Open-source packages cost nothing.
- Managed and self-hosted backend options.
- Can block scripts and respond to consent revocation.
- Supports regional rules and multiple languages.
- Includes consent-aware map and video components for React and Next.js.
Watch out
- It does not provide legal advice.
- Self-hosted CMP registration requires the operator's own registration.
- Enterprise migration and support pricing is by quote.
Who it suits
c15t suits application teams that want to build consent controls into their products and choose between a managed backend and self-hosting. Teams remain responsible for selecting rules that fit their legal requirements.
Verdict
c15t offers application-level consent components, script controls, and backend choices for teams building privacy features. Teams need to choose suitable consent rules themselves and account for their chosen deployment approach.
Plans and prices
From c15t's own pricing page, checked 12 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| c15t open-source packages | Free | free and open source · Apache 2.0 license stated on homepage |
| Enterprise migration and support | Priced on request | Migration planning · SLA support · hosted or self-hosted deployment · Quote provided after an initial call |
The facts
Each one read from c15t's own pages, with the date it was checked.
What it does
- Automatic blocking
- Yeschecked 22 Sep 2026
- Backend options
- Teams can connect c15t to a managed backend or run the backend themselves.checked 12 Oct 2026
- Consent-aware embeds
- The React and Next.js packages include consent-aware Google Maps and YouTube components.checked 12 Oct 2026
- Consent-aware scripts
- c15t can block vendor scripts until consent, apply denied defaults for vendors with consent modes, and handle revocation by unloading scripts or calling vendor consent APIs.checked 12 Oct 2026
- Consent controls
- It provides components and APIs for consent banners, preference centres, consent state, and script loading.checked 12 Oct 2026
- Consent records
- The enterprise page says the backend stores a consent record for each choice a visitor saves.checked 12 Oct 2026
- Customization
- c15t supports custom themes, component styling, translations, and headless consent interfaces.checked 12 Oct 2026
- Customization and languages
- The homepage says the banner supports 30+ languages, right-to-left text, theme tokens, and custom UI through headless hooks.checked 12 Oct 2026
- Deployment
- Teams can use a managed Inth backend or self-host the c15t backend.checked 12 Oct 2026
- Frameworks
- The documentation lists integrations for Next.js, React, JavaScript, TanStack Start, Nuxt, Vue, Astro, Svelte, and SvelteKit, among others.checked 12 Oct 2026
- Geographic targeting
- Yeschecked 22 Sep 2026
- IAB TCF
- The homepage states support for IAB TCF 2.4 and Google Consent Mode v2 signals; self-hosted CMP registration requires the operator's own CMP registration.checked 12 Oct 2026
- IAB TCF support
- Yeschecked 22 Sep 2026
- Integrations
- Documented integrations include Google Tag Manager, Google Tag, Meta Pixel, analytics tools, ad pixels, and chat widgets.checked 12 Oct 2026
- Legal limits
- The maker says c15t provides implementation tools, not legal advice, and teams remain responsible for choosing consent rules for their products and users.checked 12 Oct 2026
- Limitations and responsibility
- c15t provides implementation tools rather than legal advice, and each team remains responsible for choosing consent rules that fit its legal requirements.checked 12 Oct 2026
- Open source
- The homepage describes c15t as open source under the Apache 2.0 license.checked 12 Oct 2026
- Privacy frameworks
- The homepage describes support for 15+ privacy-law jurisdictions and IAB TCF 2.3.checked 12 Oct 2026
- Purpose
- c15t is an open-source consent management project for teams that want privacy controls in their application code.checked 12 Oct 2026
- Regional rules
- The homepage describes regional policy rules for opt-in, opt-out, or no-banner experiences.checked 12 Oct 2026
- Script controls
- The script loader checks consent and can inject eligible scripts, unload them after revocation, or send consent updates to scripts that stay loaded.checked 12 Oct 2026
- Security configuration
- The React content security policy guide lists the script, style, connection, frame, and image directives a c15t app may need to allow.checked 12 Oct 2026
- Security review
- The enterprise page says the SOC 2 audit is in progress and invites prospective customers to submit a security questionnaire.checked 12 Oct 2026
The company
- Company identity
- The terms identify Consent Management Inc, also called Inth, as a Delaware corporation with a notice address in San Francisco.checked 12 Oct 2026
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