BigCommerce

Bagisto

Bagisto is a Laravel‑based eCommerce platform that provides a robust foundation for building scalable online stores. It offers a modular architecture, multilingual support, and a powerful admin panel that lets developers and merchants manage products, orders, and customers with ease. Because it is free and self‑hosted, businesses can fully control their data and customize every aspect of the shopping experience, while leveraging built‑in integrations with popular payment and shipping providers.

PayPal

PayPal is an online payment system that enables individuals and businesses to send and receive payments online. It provides a secure and convenient way to make transactions, with features such as payment processing, invoicing, and account management.

Spree

Spree is a flexible and robust open-source e-commerce solution built on Ruby on Rails, designed to empower businesses to build and scale their online stores with ease. Its modular architecture allows developers to deeply customize the shopping experience, integrate essential third-party services, and manage products, orders, and customers efficiently. As a self-hosted platform, Spree gives merchants complete ownership of their data and infrastructure without hidden transaction fees. Backed by an active developer community and extensive documentation, it provides a solid foundation for everything from boutique shops to high-volume enterprise marketplaces.

Square

Square is a payment processing and point-of-sale system designed for businesses of all sizes. It provides a range of tools and services to help businesses manage their payments, sales, and customer relationships. With Square, businesses can accept payments, track sales, and manage their inventory and customer data all in one place.

btcpayserver

BTCPay Server is a free, open‑source payment processor that lets merchants accept Bitcoin and other cryptocurrencies without third‑party fees. It runs on your own server, giving you full control over funds and data. Designed for e‑commerce businesses, BTCPay Server integrates with popular shopping platforms and wallets, providing a secure, privacy‑focused checkout experience while eliminating payment‑gateway costs.

Shopify

Shopify is a complete e-commerce platform that allows businesses to create and manage their online stores and retail point-of-sale systems. It offers a range of features and tools to help businesses succeed in the competitive e-commerce market.