Umbraco CMS
Flexible open-source .NET CMS for content-driven websites
5.2k stars 2.9k forks last commit first released MIT
Actively maintained
Last commit 26 Aug 2026.
Umbraco CMS is a free and open-source content management system built on .NET for creating and managing content-driven websites and digital experiences. It provides an editor-friendly backoffice and a flexible, developer-centric architecture for building customized solutions.
Key Features
- Content modeling with custom document types, templates, and structured content
- Editor-focused backoffice for creating, organizing, and publishing content
- Extensible architecture for adding custom dashboards, sections, and content apps
- Integration-friendly approach for connecting to external services and APIs
- Deployment options suitable for small sites through enterprise-scale implementations
Use Cases
- Building and managing marketing websites with custom editorial workflows
- Implementing scalable content platforms for organizations with multiple sites
- Developing tailored CMS solutions that require custom integrations and UI extensions
Umbraco CMS is well-suited for teams that want a mature .NET-based CMS with a strong editing experience and the flexibility to build highly customized implementations. Its extensibility and scalability make it a common choice for long-lived websites and evolving digital platforms.
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