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Thelia vs Sylius: catalog facts
Thelia	Sylius
Free Free and open source.	Freemium Community Edition is free under MIT; Sylius Plus is a paid licence with extra modules and…
Web, Self-hosted	Self-hosted
Built on Symfony and API Platform Designed to integrate with ERP, PIM and CRM systems	Headless design with a REST API Built on standard Symfony components
Aimed at custom builds that need developer work Website and community are mainly in French	Requires PHP and Symfony development skills to build a shop Several advanced features need the paid Sylius Plus
Self-hosted	Self-hosted
Open source	Open source
License: GPL-3.0	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.