33 open-source CMS vendors
Open-source software for CMS that you can self-host, with auditable source code — regardless of the developer's headquarters.
- vendors scored
- 33
- European
- 21
- last checked
- 11 October 2026
Vendors, scored
Score per vendor: 0 = high exposure, 100 = sovereign
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- Sovereignty score 94 out of 100AmetysFrance · Self-hosted / open sourceOpen-source Java CMS from French publisher Anyware Services, for internet portals, intranets and extranets; offered as SaaS or on-site deployment.
- Sovereignty score 94 out of 100Bolt CMSNetherlands · Self-hosted / open sourceOpen-source PHP CMS built on Symfony under the MIT licence; development backed by Two Kings, a web agency in The Hague.
- Sovereignty score 94 out of 100Cockpit CMSGermany · Self-hosted / open sourceOpen-source headless CMS with JSON API and flexible content models
- Sovereignty score 94 out of 100ContaoGermany · Self-hosted / open sourceGerman CMS widely used in DACH region; self-hostable
- Sovereignty score 94 out of 100django CMSSwitzerland · Self-hosted / open sourceOpen-source CMS (BSD licence) built on Django, maintained by the non-profit django CMS Association in Zurich.
- Sovereignty score 94 out of 100Enonic XPNorway · Self-hosted / open sourceOpen-source, API-first CMS (GPL-3.0) from Enonic in Oslo, Norway; self-hostable.
- Sovereignty score 94 out of 100Ibexa DXPNorway · EU sovereignNorwegian digital experience platform (formerly eZ Platform) for B2B
- Sovereignty score 94 out of 100Neos CMSGermany · Self-hosted / open sourceOpen-source content application framework; EU-hostable
- Sovereignty score 94 out of 100OpenCmsGermany · Self-hosted / open sourceOpen-source Java content management system by Alkacon Software (Cologne, Germany); LGPL-2.1, self-hosted.
- Sovereignty score 94 out of 100PloneGermany · Self-hosted / open sourceOpen-source enterprise CMS built on Python with strong security
- Sovereignty score 94 out of 100PrimoGermany · Self-hosted / open sourceOpen-source visual CMS for static websites with component builder
- Sovereignty score 94 out of 100ProcessWireGermany · Self-hosted / open sourceOpen-source CMS and CMF with powerful API and flexible architecture
- Sovereignty score 94 out of 100PubliiPoland · Self-hosted / open sourceOpen-source desktop CMS (GPL-3.0) for static websites, developed by TidyCustoms (Poland); runs on your own computer.
- Sovereignty score 94 out of 100REDAXOGermany · Self-hosted / open sourceOpen-source PHP/MySQL CMS (MIT licence) from Yakamara Media GmbH & Co. KG in Frankfurt am Main, with an open contributor community.
- Sovereignty score 94 out of 100SquidexGermany · Self-hosted / open sourceOpen-source headless CMS with REST and GraphQL APIs under the MIT licence; self-hostable or as a cloud service (cloud.squidex.io). Core team in Germany per the project page.
- Sovereignty score 94 out of 100Strapi (self-host)France · Self-hosted / open sourceFrench headless CMS; self-hostable
- Sovereignty score 94 out of 100SuluAustria · EU sovereignAustrian open-source CMS built on Symfony for enterprise websites
- Sovereignty score 94 out of 100TYPO3Switzerland · Self-hosted / open sourceEnterprise open-source CMS; governed by the Swiss TYPO3 Association; self-hostable
- Sovereignty score 94 out of 100UmbracoDenmark · EU sovereignDanish open-source CMS built on .NET for flexible content management
- Sovereignty score 92 out of 100MicroweberBulgaria · Self-hosted / open sourceBulgarian open-source drag-and-drop CMS and website builder (Sofia, Bulgaria), built on Laravel/PHP, MIT-licensed on GitHub, with an actively maintained codebase (27,000+ commits, release 2.0.20 in Aug 2025) and eCommerce support for freelancers through SMEs.
- Sovereignty score 92 out of 100RoadizFrance · Self-hosted / open sourceFrench open-source polymorphic CMS built on Symfony and Doctrine, maintained by Rezo Zero (Lyon, France). Legacy v1.x (MIT licensed) is EOL/security-only, but development actively continues in the v2 monorepo (core-bundle-dev-app) with CI activity confirmed as recently as July 2026, so the product is alive under a new architecture.
- Sovereignty score 79 out of 100GhostSingapore · Self-hosted / open sourceOpen-source publishing platform for professional bloggers and publishers
- Sovereignty score 79 out of 100KeystoneJSAustralia · Self-hosted / open sourceOpen-source headless CMS and application platform built on Node.js
- Sovereignty score 79 out of 100SilverStripeNew Zealand · Non-EU vendoropen-source CMS and framework with flexible content management
- Sovereignty score 79 out of 100TextpatternUnited Kingdom · Self-hosted / open sourceOpen-source CMS with focus on elegance, simplicity and performance
- Sovereignty score 79 out of 100WagtailUnited Kingdom · Self-hosted / open sourceOpen-source CMS built on Django/Python with British origin
- Sovereignty score 71 out of 100Drupal (self-host)United States · Self-hosted / open sourceOpen-source enterprise CMS; self-hostable in EU
- Sovereignty score 71 out of 100Grav (self-host)United States · Self-hosted / open sourceFlat-file CMS; self-hostable
- Sovereignty score 71 out of 100Payload CMSUnited States · Non-EU vendorOpen-source headless CMS and application framework built with TypeScript. Acquired by Figma Inc. (US) in June 2025; the MIT-licensed OSS repository remains unchanged. Headquartered in Grand Rapids, Michigan, USA.
- Sovereignty score 71 out of 100WordPress (self-host)United States · Self-hosted / open sourceOpen-source CMS from the WordPress community and WordPress Foundation (US); sovereign when self-hosted in EU infrastructure
- Sovereignty score 69 out of 100Concrete CMSUnited States · Self-hosted / open sourceOpen-source CMS (MIT) with in-context editing from PortlandLabs, Inc. (US); self-hostable or as a hosted service.
- Sovereignty score 69 out of 100Crafter CMSUnited States · Self-hosted / open sourceOpen-source headless CMS (GPL v3) from Crafter Software Corporation (McLean, US), self-hostable or as SaaS.
- Sovereignty score 69 out of 100JoomlaUnited States · Self-hosted / open sourceOpen-source CMS under the GPL from Open Source Matters, Inc. (New York, US), self-installed.
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