An open source web framework for Ruby that is optimized for programmer happiness and sustainable productivity. It lets you write beautiful code by favoring convention over configuration.
Redmine is a flexible project management web application. Written using the Ruby on Rails framework, it is cross-platform and cross-database.
An open source school management system based on Ruby on Rails. Fedena is cloud based school ERP software used in schools for administration purposes.
Spree is a complete open source e-commerce solution built with Ruby on Rails. This QuickStart helps you set up a Spree based functional ecommerce store instantly!
A Ruby on Rails 4 project with ActiveRecord replaced with MongoID.
Everytrack intends to be that platform where people who want to share resources can list a bunch, consistently. It's going to be community driven. It's free software (as in freedom, beer optional).
Rubyfy.Me is an open-source project focused on benchmarking various Ruby implementations in different versions.