Square Online Store lets merchants create a basic storefront for free, but many businesses look for other platforms that also offer a free tier or open‑source solution. Below is a curated list of 20 free‑or‑open‑source eCommerce platforms that can be used as alternatives to Square Online Store.
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A free WordPress plugin that turns any WordPress site into a fully functional online store. Extensible with thousands of free and paid extensions.
Open‑source eCommerce solution with a rich feature set, customizable themes, and a large community of developers.
Lightweight, open‑source shopping cart system with a simple admin interface and a marketplace of free extensions and themes.
Powerful, enterprise‑grade platform that’s free to download and self‑host. Ideal for developers and large catalogs.
Add a free online store to any website, social media page, or blog. Free tier supports up to 10 products.
Designed for artists and makers; free tier lets you sell up to 5 products with a simple storefront.
Drag‑and‑drop website builder with a free tier that includes basic eCommerce features (limited to Wix branding).
Square‑owned website builder offering a free plan with basic store capabilities and Square payment integration.
One‑page website builder that includes a free eCommerce tier for up to 5 products.
Create a multilingual site with a free eCommerce plan that supports up to 10 products.
Free forever plan when you use Shift4Shop’s own payment gateway; includes unlimited products and orders.
Headless, open‑source commerce framework built with Node.js and GraphQL, ideal for custom storefronts.
Open‑source, real‑time commerce platform built on Meteor, offering a modern stack for developers.
Free, open‑source version of Shopware with a modular architecture and a strong plugin ecosystem.
Ruby on Rails‑based open‑source eCommerce platform with a flexible API and a large extension marketplace.
High‑performance, GraphQL‑first, open‑source eCommerce storefront and API written in Python/Django.
Open‑source headless commerce engine built with Node.js, offering a customizable backend for modern storefronts.
Modern, Symfony‑based open‑source eCommerce platform focused on flexibility and developer experience.
Laravel‑based open‑source eCommerce framework with multi‑vendor support and a clean admin panel.
Open‑source marketplace solution built on Symfony, enabling B2B/B2C multi‑vendor platforms.