Umbraco is an open‑source .NET‑based content management system known for its flexibility and developer‑friendly architecture. Below is a curated list of 20 alternative CMS platforms—ranging from open‑source projects to SaaS solutions—that can serve as viable replacements depending on your project size, technology stack, and feature requirements.
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The world’s most popular open‑source CMS, offering a massive plugin ecosystem, themes, and a user‑friendly editor.
A robust, enterprise‑grade open‑source CMS with strong multilingual and taxonomy capabilities.
A premium .NET‑based digital experience platform offering personalization, marketing automation, and e‑commerce.
All‑in‑one .NET CMS, e‑commerce, and online marketing platform with a visual editor and modular architecture.
Headless CMS that delivers content via APIs, ideal for omnichannel experiences and JAMstack sites.
Open‑source, Node.js‑based headless CMS offering customizable APIs and a plugin ecosystem.
Modern, open‑source publishing platform focused on speed, SEO, and subscription‑based monetization.
Visual web‑design tool with a built‑in CMS, allowing designers to build responsive sites without code.
All‑in‑one SaaS website builder with integrated CMS, e‑commerce, and marketing tools.
Drag‑and‑drop website builder with a flexible CMS, app market, and AI‑driven design assistance.
Developer‑friendly PHP CMS offering granular control, a powerful templating engine, and a thriving plugin marketplace.
Enterprise‑grade CMS within the Adobe Experience Cloud, delivering content, assets, and personalization at scale.
Java‑based enterprise CMS focused on personalization, multi‑site management, and integration with digital experience tools.
Open‑source .NET CMS (formerly DotNetNuke) with modular extensions and a strong community.
Scalable, open‑source enterprise CMS built on PHP, known for its flexibility and multilingual support.
Headless CMS with real‑time collaboration, customizable content studio, and a query language (GROQ).
SaaS headless CMS offering a visual editor, content modeling, and API‑first delivery for modern web apps.