Spree E-Commerce is a complete, scalable, API-driven open source E-commerce framework built with Ruby on Rails. Spree is well suited to serve as a custom technology platform to build any type of an E-commerce application: an online store, a multi vendor marketplace, a rich-content driven shopping platform, a social commerce website or a backend engine for an E-commerce mobile or tablet app (iOS, Android). It is used by more than 45,000 retailers as their e-commerce platform. You can get more details about Spree on it's Website and repository.
Spree is supported by many official as well as third party open source extensions. These extensions provides convenient, reusable & sharable way to modify or extend Spree Commerce. A Spree Commerce developer can either choose to use an existing extension to customise desired Spree feature or can create their own extension and share with community. There are hundreds of extensions already available.
We have curated a list of Spree e-commerce Ruby on Rails plugin extensions considering the usage, popularity and response by the community.