nopCommerce - The most popular open-source eCommerce shopping cart solution based on ASP.NET Core

•    CSharp

nopCommerce is the best open-source eCommerce shopping cart solution. nopCommerce is free, and it is the most popular ASP.NET eCommerce platform. nopCommerce supports a mobile version of your website with a compelling, feature-rich and graphically pleasing storefront, and it provides means for retailers to immediately deliver relevant offers, promotions and products. Its feature include Multi store, Multi vendor, SEO, Payment methods, Shipping methods, Tax features, Marketing, Stock management and lot more.

Prestashop - Free Open-Source shopping cart software for Web 2.0

•    PHP

PrestaShop is a free, open-source e-Commerce shopping cart software that allows you to open your own Internet business in just a few clicks. It has more than 310 features include Catalog Management, content management, Product Displays, Site Management, S.E.O, Checkout, Shipping, Payments, Marketing, Client Account, Translations, Security, Localization/Taxes, Analytics and Reporting and lot more.

minicart - The minicart is a great way to improve your PayPal shopping cart integration.

•    Javascript

As much as I love it, this project is no longer supported with me being short on time. I am open to Pull Requests and if anyone is interested in taking it on please let me know. The minicart is a great way to improve your PayPal shopping cart integration. One simple change and your users will be able to manage their shopping cart directly from your website. Additional APIs provide you the power to customize the behavior to your needs.

Zeus cart - shopping cart software

•    PHP

Zeus Cart is an incredibly stable & richly-interfaced, open source shopping cart and it's a simple E-commerce software package which allows, even a non-technical person to open an online store on the Internet, with minimal efforts. Zeus Cart includes a number of marketing-tailored features that can help you increase your online sales, promote repeat purchases, and boost customer satisfaction.

Saleor Commerce - A headless, GraphQL-first e-commerce platform delivering ultra-fast, dynamic, personalized shopping experiences

•    Python

Saleor is a rapidly-growing open source e-commerce platform that has served high-volume companies from branches like publishing and apparel since 2012. Based on Python and Django, the latest major update introduces a modular front end powered by a GraphQL API and written with React and TypeScript.

Autoload eCommerce Shopping Cart Script

•    PHP

osCommerce based shopping cart script.

osCommerce - Open Source Online Shop eCommerce Solution

•    PHP

osCommerce allows store owners to setup, run, and maintain online stores with minimum effort. It could be easily integrated in to the existing site. Administrator could add categories, products, manufacturers, customers, and reviews. Multilingual and Multicurrency support. It accepts numerous online (PayPal, 2CheckOut, Authorize.net, iPayment, ..) and offline (cheque, money orders, offline credit care processing) payments.

DotNetNuke® Store

DotNetNuke® Store is a rich module suite which enables you to sell products on your DNN site. Out of the box support for either Authorize.Net or PayPal, includes categories, products, mini cart, full shopping cart, reviews, order history and user provided gateways.

AvoRed - An Open Source Laravel Shopping Cart

•    PHP

AvoRed is a free open-source e-commerce application development platform written in PHP based on Laravel. Its an ingenious and modular e-commerce that is easily customizable according to your needs, with a modern responsive mobile-friendly interface as default. The main advantage of being an modular E-Commerce is that you can download each module separately that is necessary for your store.

Zen Cart - A PHP based e-Commerce Shopping Cart Software

•    PHP

ZenCart is a PHP based e-Commerce Shopping Cart Software. ZenCart is easy to install. Products, Customers, Pricing, Payment and Shipping could be easily managed by administrators. It is built on top of osCommerce. It supports Multiple gateway services, Sales, Discounts, Gift certificate, Audit trail, Newsletter manager, Advertising banners, Tax rate configuration, multiple shipping options and lot more.

GrandNode2 - Open source, headless, multi-tenant eCommerce platform built with .NET Core, MongoDB, AWS DocumentDB, Azure CosmosDB, Vue.js

•    CSharp

GrandNode 2.0 is an e-commerce platform for developing online stores. It gives you possibility to create highly advanced, good-looking online stores which have unlimited power of customization. GrandNode 2.0 was designed to solve the most important business challenges from the world of digital shopping. It provides the high performance front-end, rendered within miliseconds. It includes features of eCommerce, CRM, CMS and ERP.

BigFish eCommerce - eCommerce and ERP solutions

•    Java

BigFish is a world class solution that leverages the power of the Open for Business (OFBiz) open source project. OFBiz is the foundation for thousands of eCommerce and ERP solutions. BigFish extends, enhances and simplifies OFBiz. All the necessary revenue-enhancing features have been added to a solid, stable foundation. The solution is open, flexible, production-ready, and scalable.

Cezerin - Ecommerce Progressive Web Apps

•    Javascript

Cezerin is React and Node.js based eCommerce platform. Allows creating a Progressive Web Apps. It feature include list Product details, Product categories, Inventory and stock management, Orders, Pages, Shipping and payment methods, Payment Gateways, Checkout options, Theme Settings, App store, Server-side rendering (SEO friendly) and lot more.

react-shopping-cart - 🛍️ Simple ecommerce cart application built with React Redux

•    Javascript

This simple shopping cart prototype shows how React components and Redux can be used to build a friendly user experience with instant visual updates and scaleable code in ecommerce applications. The MIT License (MIT). Please see License File for more information.

MerchantTribe - Shopping Cart and Ecommerce Platform in C# MVC ASP.NET

•    DotNet

MerchantTribe is a free, open-source ASP.NET MVC ecommerce platform in C#. For more than a decade, we've been building and selling commercial .NET shopping cart software. Now, we're releasing an open-source project based on our award winning BV Commerce software. Thousands...

TomatoCart - Online Shopping Cart Solution

•    PHP

TomatoCart is a new and distinctive open source shopping cart solution. It employs Web2.0 technology such as Ajax and Rich Internet applications (RIAs).Tomato Cart’s application mimics the user experience of desktop Operating System, offering features and applications similar to a PC environment.

laracom - Laravel FREE E-Commerce Software

•    PHP

Laravel FREE E-Commerce Software

Shopizer - Java Enterprise e-commerce Framework

•    Java

Shopizer is a Java enterprise open source e-commerce framework. Its functionality includes Product catalogue, Shopping cart, Order fulfillment, Content management, Customer care, Payment management, Shipping management and lot more.

Shopping Cart .NET

•    ASPNET

Full ASP.NET shopping cart developed in C# using .NET 4.0 Dynamic Data and REST ADO.NET Data Services The project includes: Database scripts, Store front, admin CMS and a full Visual Studio 2010 solution. Social intergration with product comments and tag cloud control. In...

Vendure - A headless GraphQL ecommerce framework for the modern web

•    TypeScript

A headless GraphQL ecommerce framework built on Node.js with Nest & TypeScript, with a focus on developer productivity and ease of customization. It delivers content through its GraphQL API, leaving you free to implement your store-front applications in the technologies of your choice.