One install, many shops: Sylius runs separate storefronts with their own languages, currencies, and countries from a single admin panel. Products are simple or configurable. Define a size option, generate variants from S through XXL, and track stock per variant. Attributes, translations, and a nested taxon tree keep the catalog organized. Prices are set per channel. Catalog promotions add sale badges and struck-through prices. Cart promotions pair rules, like a minimum item total, with actions, like a fixed order discount, optionally behind coupon codes. Shipping methods carry delivery windows, zone eligibility, and shipping and tax categories. Order pages show items, shipping, taxes, promotions, payment state, and customer details. The dashboard charts sales and paid orders over time and lists pending work. A ready-made storefront covers product pages, a cart, checkout with address, shipping, payment, and review steps, customer accounts with order history, and product reviews. Custom frontends talk to separate shop and admin REST APIs, documented in OpenAPI. Every enabled locale adds a translation section to products, taxons, shipping methods, and promotions. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

With over 35,000 GitHub stars and 460 contributors, Medusa is the headless commerce framework that gives development teams full ownership of their e-commerce backend without license fees, per-transaction charges, or revenue sharing. The modular architecture ships over 18 domain modules covering products, collections, categories, inventory, pricing, carts, orders, payments, fulfillment, promotions, customers, users, API keys, and stock locations, each independently usable and replaceable. REST and GraphQL APIs expose every commerce operation to any frontend framework — official starters exist for Next.js with community options for Nuxt, Remix, and Gatsby. The React-based admin dashboard provides out-of-the-box order management, product maintenance, promotions configuration, B2B accounts, and multi-warehouse inventory, extensible via the Admin SDK for custom views and workflows. The workflow engine orchestrates long-running commerce processes like checkout, fulfillment, and returns with compensating transactions for reliability. Over 200 official and community plugins integrate Stripe, PayPal, Klarna, Algolia, Meilisearch, SendGrid, Mailchimp, Contentful, Sanity, and Klaviyo. Native multi-region and multi-currency support handles tax-inclusive pricing, region-specific payment and fulfillment providers, and localized storefronts from a single backend. Enterprises including Viessmann, Makro PRO, and INSPIRED Pet Nutrition run Medusa in production. Self-hosting deploys via Docker or directly on Node.js with PostgreSQL and Redis. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

One admin backend can run a single online shop or a whole marketplace of independent sellers. The dashboard shows the latest orders and sales graphs. Panels cover products, stock, customers, subscriptions, orders, suppliers, and coupons. Aimeos handles bundle, voucher, virtual, configurable, custom, and event products. Block and tier pricing work out of the box. Discounts, vouchers, and a flexible basket rule system are built in. Subscriptions renew through recurring payments. Checkout offers more than 100 payment gateways. Storefronts come in 30+ languages, with full right-to-left support and AI-based text translation. Rich snippets help search engines read product pages, and layouts are optimized for phones and tablets. Switch on multi-vendor mode and sellers can register themselves, then manage their own site as administrators or as editors with limited rights. A JSON REST API following jsonapi.org feeds custom frontends, progressive web apps, and native mobile apps. A GraphQL API handles administration. The built-in MCP server lets AI assistants such as Claude or ChatGPT search, create, update, and delete products, orders, and customers within the permissions of the account that connects. Prisma brings AI into the admin interface to write product descriptions, translate content, generate images, and remove backgrounds with the provider you choose. Every component is modular, so any part can be extended or replaced. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT and LGPLv3 licensed.