Sylius

Sylius is an open-source, headless commerce platform for mid-market and enterprise brands building tailored B2C or B2B operations. It suits organizations with development and infrastructure capability that want to control the commerce architecture. The payoff is deep customization; the cost is running a self-hosted system and choosing between community and SLA-backed support.

Overview

Sylius is a Symfony application with an MIT-licensed Standard edition. Installation is available through Composer or Docker, and the platform can run on a conventional VPS or in Docker and Kubernetes environments. That deployment range works for teams with established infrastructure practices, but it also leaves hosting, upgrades and operational design to the customer.

The platform handles omnichannel sales and digital products, and is designed for demanding business models rather than a fixed, ready-made storefront. Its headless approach lets a business build its own customer experiences around the commerce core. Organizations wanting a managed shop with minimal engineering involvement should look elsewhere.

Key features

Headless API and extensibility

Sylius provides a customizable REST API built with API Platform. It is intended for headless front ends and microservice architectures, making it a strong foundation when commerce must connect to several interfaces or internal services. The API is a developer-oriented advantage, not a substitute for designing and maintaining those experiences.

The Sylius Addons marketplace includes plugins and an Integrations category for third-party connections. This gives implementation teams a starting point for extending the platform, while still requiring them to assess, configure and maintain the chosen additions.

Commerce modules

Sylius Plus adds advanced multi-store, returns management, multi-source inventory, loyalty, partial shipment and request-for-quotation modules. These address more complex B2C and B2B operations and can reduce the amount of bespoke module work for organizations that need them. Standard does not include a native quotation process, and customers cannot initiate price inquiries online, which is a material limitation for quote-led B2B selling.

Security and support

Sylius published a 2026 security update for its Mollie plugin addressing payment-status forgery through webhooks and customer-data exposure through order-ID enumeration. This illustrates why plugin maintenance matters in a self-hosted stack. Standard relies on community support with no response-time guarantee. Plus lists SLA-backed support with a one-day response time, a meaningful distinction for revenue-critical deployments.

Pricing

Standard is the logical choice for teams able to operate the platform themselves and willing to depend on community assistance. It preserves the open-source, on-premise model but gives up Plus modules, vendor-supported distribution and a stated support response time. Plus is aimed at organizations whose multi-store, inventory, returns, loyalty, partial-shipment or quotation requirements justify a commercial subscription, particularly when a one-day response target matters. The published Plus price starts at 800€ per year; no seats, usage quotas or trial terms are given, so budget planning should focus on the stated annual starting price and the scope of the required modules.

Platforms

Sylius is available as an API, a self-hosted deployment and a web commerce platform. Self-hosting on a VPS suits conventional operations, while Docker and Kubernetes support fits teams standardizing on containerized cloud deployments. There is no hosted SaaS option in these platform choices, so infrastructure ownership remains part of the purchase decision.

Who it's for

Sylius is best for mid-market and enterprise brands with Symfony developers and the capacity to run a customized commerce stack. It fits B2C and B2B businesses with demanding workflows, multiple stores or channels, digital products and integration-heavy architectures. Standard can suit a technically capable organization prioritizing license freedom. Plus is more appropriate when commercial modules and defined support are operational requirements.

It is a poor match for a small team seeking a turnkey storefront, managed hosting or native online price inquiries without additional development. The self-hosted model and headless implementation demand more planning than a conventional hosted ecommerce service.

Pros and cons

Pros

• Custom REST API: API Platform support enables headless front ends and microservice designs.
• Flexible deployment: VPS, Docker and Kubernetes options accommodate different infrastructure practices.
• Open-source foundation: Standard uses the MIT license and can be installed with Composer or Docker.
• Commercial expansion path: Plus adds modules for multi-store, returns, inventory, loyalty, shipments and quotations.
• Extension ecosystem: The Addons marketplace and integrations category provide routes to third-party connections.

Cons

• Operational burden: Self-hosting leaves deployment and ongoing maintenance with the customer.
• Standard support limits: Community support has no response-time guarantee.
• B2B quotation gap: Standard lacks a native quotation process and online customer price inquiries.
• Engineering commitment: The headless, Symfony-based approach is unsuitable for teams wanting a ready-made storefront.

Alternatives

Choose Crystallize instead if you want a freemium API platform with web, macOS and Windows access; its free Particle plan includes one tenant per project, unlimited users and languages, 25 orders, 100 items and 5 GB of bandwidth, while Atom is 949.00 USD.

Aimeos is the better pick when a free, open-source framework with no license or transaction fees is the priority. Bagisto suits teams wanting a free open-source download with documented PHP, database and memory requirements.

Consider Commerce Layer for API commerce across Android, iOS and web, including a Developer plan with one organization, two users, two markets, 1,000 SKUs, 10 links and 100 free live orders per month. Spree Commerce offers open-source self-hosted DTC, B2B and marketplace editions. Solidus provides a free DIY edition when bringing your own infrastructure is acceptable. Vendure is another freemium API and self-hosted framework, with platform features including B2B buying and pricing. Unchained Engine is preferable when a fully free, open-source engine with no licensing or per-transaction fees is the deciding factor.

For broader comparisons, browse Headless Ecommerce Platforms and Ecommerce platforms.

Verdict

Choose Sylius when your mid-market or enterprise business needs a highly tailored B2C or B2B commerce core, headless API control and infrastructure flexibility. Sylius Plus is the stronger operational choice when commercial modules and a one-day support response are worth the annual subscription. Look elsewhere if you need managed hosting, a turnkey storefront or native online price inquiries without building them.