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Concrete CMS vs REDAXO: catalog facts
Concrete CMS	REDAXO
Free Free and open source under the MIT licence.	Free Free and open source under the MIT licence.
Self-hosted	Self-hosted
Permissive MIT licence Long-running project with legacy branches available	Full control over output code through custom modules Installer addon with ready-made demo websites
Needs a PHP server and Composer to install Older concrete5 sites need upgrading to reach version 9	Documentation and community are mostly in German Requires PHP and MySQL hosting
Self-hosted	Self-hosted
Open source	Open source
License: MIT	License: MIT
Not stated if an account is needed	No account 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.