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Backdrop CMS vs TYPO3: catalog facts
Backdrop CMS	TYPO3
Free Free and open source under the GPL-2.0 licence.	Free Free and open source under the GPL; paid support is available from the TYPO3 Company.
Web, Self-hosted	Self-hosted
Built-in upgrade path from Drupal 7 Add-ons install from inside the site	Extensible core with a large extension library Suited to large and multi-site installations
Requires PHP and MySQL hosting Add-on selection is narrower than larger CMS ecosystems	Steeper learning curve than simpler CMSs Requires a PHP and database server
Self-hosted	Self-hosted
Open source	Open source
License: GPL-2.0	License: GPL-2.0
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.