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Squidex

An open-source headless CMS built on .NET, focusing on structured content and event sourcing.

What is Squidex?

Squidex is an open-source headless CMS and content infrastructure platform built with ASP.NET Core and MongoDB. Unlike many Node.js-based headless CMSs, Squidex offers a robust option for the .NET ecosystem.

It is designed for developers who need a centralized content hub with strict schema validation and powerful API capabilities.

At a Glance

  • Type: Headless CMS
  • Stack: ASP.NET Core / MongoDB
  • Best For: Apps, centralized content hubs, .NET teams
  • Architecture: Event Sourcing (preserves all history)

The Case for Squidex

Squidex uses Event Sourcing, which means every change to your content is stored as an event. This provides an audit trail and version history that is immutable and reliable—a killer feature for enterprises with compliance needs.

Strengths

  • Event Sourcing: Complete history of every data change.
  • Rule Engine: Trigger webhooks or actions based on content events.
  • Schema Editor: Flexible visual editor for defining content models.
  • Open Source: MIT license (can self-host).

Weaknesses

  • Complexity: Event sourcing concept adds architectural weight.
  • UI: Functional but less “flashy” than some VC-backed competitors.

Verdict

Choose Squidex if you need a .NET-based headless CMS with enterprise-grade data integrity and history tracking.