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Sylius vs OpenCart: catalog facts
Sylius	OpenCart
Freemium Community Edition is free under MIT; Sylius Plus is a paid licence with extra modules and…	Freemium The self-hosted software is free; OpenCart Cloud hosting is offered on paid plans.
Self-hosted	Web, Self-hosted
Headless design with a REST API Built on standard Symfony components	Free to download and update with no monthly fees Built-in management of products, orders, taxes and coupons
Requires PHP and Symfony development skills to build a shop Several advanced features need the paid Sylius Plus	Self-hosting requires a PHP web server and maintenance Third-party modules are supported by their own developers, not the core project
Self-hosted	Self-hosted, Hosted service
Open source	Open source
License: MIT	License: GPL-3.0
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.