web based Scrum tool, customizable, feature rich and easy to use
Genji is a web based Scrum tool and task management system. It offers powerful filtering capabilities, many customization features, reports, integration with Jenkins, SVN, Git, Maven, and more.
Support for RACI project management matrix and the Getting Things Done method is built in.
Web development IDE in browser, supports Java, ruby, javascript...etc
HiveMind is a browser based web development that combines an application container (jetty), a middleware and a developer environment that runs in the browser.
It runs on the jvm so you are not limited by environment. You can run it on your laptop, company server or even on a cloud service like AWS.
It supports Java, Ruby, Python, JavaScript, Groovy, Clojure.
Source include so it is easy to hack so you can modify it for your own need.