6 open-source Consent Management (CMP) vendors
Open-source software for Consent Management (CMP) that you can self-host, with auditable source code — regardless of the developer's headquarters.
- vendors scored
- 6
- European
- 4
- last checked
- 11 October 2026
Vendors, scored
Score per vendor: 0 = high exposure, 100 = sovereign
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- Sovereignty score 94 out of 100CookieConsent (Orestbida)Italy · Self-hosted / open sourceExtremely fast, cross-browser open-source vanilla-JS cookie consent library (MIT licence) with zero external dependencies. Created by Orest Bida, a freelance developer in Italy.
- Sovereignty score 94 out of 100Kodex (KIProtect)Germany · Self-hosted / open sourceEnterprise data-protection suite that anonymises data streams in real time and validates consent tokens before they reach analytics platforms. Developed by KIProtect GmbH (Berlin, Germany) — the same company behind the already-catalogued consent widget Klaro!, but a separate product.
- Sovereignty score 94 out of 100Tarteaucitron.jsFrance · Self-hosted / open sourceOpen-source cookie consent library, recommended for years by the French privacy regulator CNIL. Supports hundreds of scripts out of the box. Created by Amauri Champeaux, an independent developer in Béziers, France.
- Sovereignty score 92 out of 100KlaroGermany · Self-hosted / open sourceOpen-source, privacy-friendly consent manager with GDPR compliance, maintained by Germany's KIProtect GmbH.
- Sovereignty score 79 out of 100GDPR Cookie ComplianceUnited Kingdom · Self-hosted / open sourceOpen-source WordPress plugin (GPL) for storing consent locally in your own database, free of external SaaS dashboards. Used on 300,000+ websites. Developed by Moove Agency (United Kingdom).
- Sovereignty score 77 out of 100Silktide Consent ManagerUnited Kingdom · Self-hosted / open sourceCookie banner (MIT licence) from Silktide Ltd (UK), added to websites as a script, with Google Consent Mode v2 support.
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