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Umbraco vs Squidex: catalog facts
Umbraco	Squidex
Free The CMS is free and open source under the MIT licence.	Free Open source under the MIT licence; a hosted version offers free signup.
Self-hosted	Web, Self-hosted
Built on modern .NET and ASP.NET Core Editor-friendly backoffice	REST and GraphQL APIs Full content version history and audit logs
Requires .NET development skills to build sites Marketing focuses on enterprise and sales-led services	Headless, so a separate front end is required Documentation is described as a work in progress
Self-hosted	Self-hosted, Hosted service
Open source	Open source
License: MIT	License: MIT
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.