Open-Source Ecommerce · Sylius

Sylius

Sylius is an open-source eCommerce framework built on PHP and Symfony, offering a headless REST API architecture for flexible storefront integration. It emphasizes code quality through BDD testing practices and is designed for customizable business-specific applications.

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Source: GitHub — github.com/Sylius/Sylius

8.5k

GitHub stars

2.2k

Forks

PHP

Primary language

MIT

License (OSI-approved)

Key facts

Objective fields from the source. Values we can't verify are shown as “Unknown” rather than guessed.

Field	Value
Repository	Sylius/Sylius
Owner	Sylius
Primary language	PHP
License	MIT — OSI-approved
Stars	8.5k
Forks	2.2k
Open issues	272
Latest release	v2.2.6 (2026-06-02)
Last updated	2026-07-08
Source	https://github.com/Sylius/Sylius

What Sylius is

Built on Symfony framework with API Platform integration, Sylius provides a REST API-first eCommerce backend with modular architecture. It uses PHPUnit and Behat for full-stack behavior-driven development and supports plugin extensibility via Packagist.

Quickstart

Get the Sylius source

Clone the repository and explore it locally.

terminalbash

1git clone https://github.com/Sylius/Sylius.git2cd Sylius3# follow the project's README for install & configuration

Need it deployed, integrated, or customized instead? DEV.co ships production installs.

Best use cases

Headless eCommerce Implementations

Ideal for decoupled architectures where the storefront frontend (mobile, web, PWA) is independently developed and consumes the REST API. Allows rapid frontend iteration without backend constraints.

Custom, Business-Specific eCommerce Platforms

Strong plugin and bundle architecture enables tailored feature sets. Suitable for organizations requiring domain-specific commerce logic beyond standard out-of-box shop functionality.

Multi-Channel and B2B Commerce (with Sylius Plus)

Supports multi-store management and B2B suite capabilities through modular features. Relevant for enterprises managing multiple brand or regional storefronts from a single platform.

Implementation considerations

Docker installation recommended; requires Composer and PHP environment setup. Review system requirements documentation before infrastructure decisions.
BDD workflow (Behat + PHPUnit) is embedded practice; teams unfamiliar with behavior-driven development will need ramp-up time and process alignment.
REST API-first design means frontend development is decoupled; allocate budget and timeline for both backend and frontend parallel development.
Plugin ecosystem exists but quality/maintenance varies. Evaluate third-party plugins against your support model and long-term maintenance risk.
Multi-store and advanced fulfillment features are in Sylius Plus, not CE. Clarify feature requirements early to avoid mid-project licensing surprises.

When to avoid it — and what to weigh

Monolithic Traditional Storefront Required — Sylius is headless-first; building a traditional theme-based storefront is not its primary design pattern. Better alternatives exist if you need pre-built theme catalogs.
Minimal PHP/Symfony Expertise in Team — Sylius requires solid understanding of Symfony, PHP OOP, and API development. Not suitable for teams without backend PHP capability or seeking a visual no-code builder.
Enterprise SLA-Only Requirement Without Budget — Professional support and SLA guarantees require Sylius Plus license. Community support via Slack/Stack Overflow only; no guaranteed response times for critical issues in open-source version.
Rapid Time-to-Market with Minimal Customization — While extensible, Sylius requires developer effort to configure and customize. Off-the-shelf SaaS platforms may offer faster initial go-live for standard requirements.

License & commercial use

Released under MIT License. MIT is a permissive open-source license allowing commercial use, modification, and distribution with minimal restrictions (retain license and copyright notice).

MIT License permits commercial use without explicit royalty or fee obligations. However, advanced features and enterprise support (SLAs, project assistance) require Sylius Plus commercial license. Clarify which features are CE vs. Plus before committing to production architecture.

DEV.co evaluation signals

Editorial assessment — not user reviews. Directional, with an explicit confidence level.

Signal	Assessment
Maintenance	Active
Documentation	Strong
License clarity	Clear
Deployment complexity	High
DEV.co fit	Strong
Assessment confidence	High

Security considerations

Security issues must be reported to [email protected] (not public issue tracker). MIT License and open-source model allow community audit, but no explicit security audit results or certification provided in data. Standard Symfony/PHP dependency management practices apply; evaluate supply chain for production use.

Alternatives to consider

WooCommerce (WordPress plugin)

Lower technical barrier; extensive theme ecosystem; simpler deployments. Lacks headless-first architecture and REST API robustness; better for small/medium single-channel stores.

Shopify Plus

Fully managed SaaS with guaranteed SLA, built-in multi-channel, and AppStore ecosystem. Higher cost, less customization flexibility, vendor lock-in. Better for enterprises prioritizing stability over custom logic.

Medusa (Node.js/TypeScript)

Modern headless eCommerce built on Node.js, similar API-first philosophy. Smaller ecosystem than Sylius; choose if team prefers JavaScript stack and greenfield builds.

Software development agency

Build on Sylius with DEV.co software developers

Sylius fits teams with PHP/Symfony expertise seeking a headless, modular platform for custom commerce. Requires upfront development investment; better ROI for mid-market and enterprise. Contact us to assess fit for your architecture.

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Sylius FAQ

Can I use Sylius in production without a paid license?

Yes; MIT License permits production use. However, production-grade support (SLAs, dedicated help) requires Sylius Plus license. Community support (Slack, Stack Overflow) is available but not guaranteed.

Do I need to build a custom frontend?

Yes; Sylius is headless. You must develop a frontend (web, mobile, PWA) that consumes the REST API. This is by design and enables decoupled, flexible storefronts.

What payment gateways and shipping providers are supported?

Not detailed in provided data. Refer to Packagist ecosystem (marked *sylius-plugin*) or docs.sylius.com for current integrations. Evaluate plugins for production maturity before adoption.

Is Sylius suitable for small/mid-market vs. enterprise?

Designed for customization at any scale. Small shops may find upfront PHP/Symfony investment high; mid-market to enterprise benefit most from modular plugin architecture and multi-store capabilities (especially with Plus).

Software developers & web developers for hire

Adopting Sylius is usually one piece of a larger software development effort. As a software development agency, DEV.co provides software development services and web development expertise — pairing senior software developers and web developers with your team to design, build, and operate open-source ecommerce software in production.

Evaluate Sylius for Your eCommerce Project

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