Open source alternative to Shopify and commercetools
Last verified
Deploy a self-hosted ecommerce platform with a NestJS REST API, Angular admin, and SSR storefront in English, French, and Arabic.
One clone, one setup run per client, no platform fee per store. The store-specific identity, brand, locales, and currency all go through the installer rather than code, so each client store is independent without forking the codebase.
The agency needs card payments at launch. Stripe is on the roadmap but not available in v1, and there is no third-party card gateway path yet.
French, English, and Arabic are built in with RTL layout and an Arabic font kit. Currency, tax, and shipping rates are set at install. No plugin layer or separate localization package is needed to run a fully mirrored Arabic storefront.
You need a managed hosting provider or a no-infrastructure deployment. The Merchant Engine runs on your own Linux server or Docker Desktop locally.
Every storefront endpoint is documented with a stable REST envelope, error codes in every locale, and idempotency on order creation. The shipped Analog.js storefront is the reference implementation, so a team building in React or Vue starts from a proven contract.
You need a GraphQL or event-driven API surface. The Merchant Engine is REST-only in v1.
The MIT license and self-hosted model mean customer data, order history, and product catalog live on your own server. The admin and storefront are yours to modify without waiting for Shopify app approvals or working within a closed theme system.
You need Shopify's existing app ecosystem, managed PCI compliance, or card payments available on day one.
Building an ecommerce store is manageable until it needs to handle real payment traffic. The pain emerges in the gaps: inventory updates that race when two customers buy the last item at the same moment, checkout flows that create duplicate orders on a network retry, webhook retries that fire twice on the same event, and refund workflows that cut across payment provider state, order state, and accounting state at once. Most frameworks hand you an API skeleton and leave the edge cases to you.
Shopify and commercetools address these problems, but at the cost of control: transaction fees, monthly platform charges, data locked into their infrastructure, and a checkout flow you customize only within their rules. The gap between needing a store and needing a store you fully own has no clean middle ground unless you build it yourself or find a stack that already did.
Covers catalog, cart, checkout, orders, inventory, payments, promotions, gift cards, reviews, returns, shipping, notifications, SEO, analytics, RBAC, and an audit log. All modules sit behind a single public config endpoint that every app reads at request time, so store identity, brand, locales, and currency never need to be hardcoded.
The setup.sh stepper asks for each store value once (identity, brand, locales, currency, domains, third-party keys), verifies every integration live before writing to disk, builds images, seeds the database, issues TLS, and ends with a smoke test. A local profile finishes in about seven minutes with Docker Desktop and no cloud accounts needed.
Any pair or all three locales, with a configurable default. The Analog.js storefront mirrors its layout for Arabic and loads an Arabic font kit with no plugin or override code required. Currency symbol position, separators, and decimal count are served to every app from the store config endpoint.
Inventory decrements use atomic WHERE-guarded SQL so two customers buying the last item at the same second cannot both succeed. Order creation takes an X-Idempotency-Key header, so a network retry or double-click never creates two orders.
The included Analog.js storefront covers home, catalog, search, cart, checkout, and customer accounts and can be deployed as-is after branding from the admin. Every page it renders is a documented REST endpoint with a stable envelope, so teams building their own frontend in React, Vue, or Svelte start from the same surface.
The admin uses granular role-based access control with a full audit log of every admin action. Cloudflare Turnstile protects sign-up by default. Two-factor sign-in and magic links are on without additional configuration.
Both platforms cover the core ecommerce loop: catalog, checkout, orders, and inventory. The difference is where the platform runs and who controls the data.
| Feature | The Merchant Engine | Shopify |
|---|---|---|
| License | MIT | Proprietary |
| Self-hosting | Yes, on your Linux box | No |
| Transaction fees | None | 0.5-2% on non-Shopify Payments |
| Arabic RTL | Built in | Via third-party apps |
| Card payments (v1) | Not yet | Yes |
| Storefront | Included (Analog.js SSR) | Included (Liquid/Hydrogen) |
The Merchant Engine is the better fit when data ownership, no transaction fees, or Arabic RTL support are priorities. Shopify is the better choice when you need card payments at launch, an established app ecosystem, or zero infrastructure overhead.
commercetools is a composable headless commerce API aimed at enterprise teams building their own frontends. The Merchant Engine is a complete stack with a shipped storefront, targeting smaller agencies and developers who want production-ready infrastructure without assembling it from parts.
| Feature | The Merchant Engine | commercetools |
|---|---|---|
| License | MIT | Proprietary |
| Self-hosting | Yes | Cloud-hosted |
| Storefront | Included | Bring your own |
| Pricing | Free (server costs only) | Enterprise contract |
| Target scale | Agency to SMB | Enterprise |
For a team that needs enterprise-tier API governance and a dedicated platform team, commercetools matches that requirement. For a development team shipping client stores at a smaller scale, The Merchant Engine delivers a complete stack without the enterprise pricing.
Self-hosting runs on Docker and Node 22 with a one-command setup script.
```bash
git clone https://github.com/Xdabier/themerchantengine.git
cd themerchantengine
./setup.sh --local
```Card gateways are not in v1. Cash on delivery, manual bank transfer, and gift cards are live. Stripe is the first card gateway being built, with the payment flow and webhook dedup already in place for it, but it is not available at checkout in the current release. Teams that need card payments at launch should follow the GitHub roadmap for the timeline.
A Linux box with Docker Engine, Compose v2, Node 22, and DNS pointing to the box. You also need an S3-compatible bucket for asset storage, a Resend account with a verified sending domain for transactional email, and a Cloudflare Turnstile widget for sign-up protection. The setup script verifies each of these live during installation and stops on the first failed check rather than leaving a broken stack.
Yes. The MIT license allows any number of client stores, paid or not, with no license key and no fee to the project. You keep the copyright notice and that is the full obligation. The creator also offers paid installation, customization, and hosting services for teams that prefer not to run it themselves.
A store enables any combination of French, English, and Arabic and sets a default locale during the installer. The storefront mirrors its layout for Arabic automatically and loads an Arabic font kit. Currency symbol, position, separators, and decimal count are set at install and served to every app from the store config endpoint at request time, so no per-locale build is needed.
The repository was created in October 2026 and is at its v1 release, with one primary maintainer and 17 open issues. It ships with a CI workflow and a test suite covering the API and install flow, and the installer smoke-tests the full stack before returning control. For early production use, monitoring the issue tracker and accounting for the Stripe adapter gap is prudent.
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Self-host The Merchant Engine on a Hostinger VPS
Keep it running 24/7, even when your laptop is off. A Hostinger VPS gives it a server of its own.
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Starts from $6.49/mo
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Extra 10% off yearly plans
Install The Merchant Engine
On a server that stays on
Start building
Focus on the app, not the server
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