We are happy to reuse as much as we can from high-quality existing open source software projects. Find below a listing of the technologies we use:
​YourKit Java profiler - for profiling our apps with a full-featured intelligent Java Profiler. YourKit, LLC supports our open source project
​IntelliJ IDEA - for writing Java code. Jetbrains supports our open source project
​WebStorm - for writing JavaScript code. Jetbrains supports our open source project
​myBalsamiq - for rapid wireframing. Balsamiq, LLC supports our open source project
​Maven - to organize, compile and build modules
​Spring framework - to assemble modules at runtime
​Spring MVC framework - to assemble modules at runtime
​Spring framework - to create web service 'controllers'
​Freemarker template language - for server-side layout
​Various great Apache projects - for utilities such as commons, commons-io, logging
​Google guava - for utilities
​Bootstrap - for responsible HTML layouts
​React - to create module user interface components
​jQuery - to ease javascript + DOM interaction
​PostGreSQL - our work-horse for simple database storage
​ElasticSearch - for smart indexing and search
​OWL api - for semantic data imports
​Open CSV - for reading tab/csv delimited files
​Apache POI - for reading Microsoft Excel files
​Github - for our code versioning, bug lists and code reviews
​Jenkins - our continuous integration build and automatic test server
​TestNG - for unit tests
​Selenium+Java - for user interface tests
​TRAC - for managing our scrum backlog