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:

Development

• 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

Middleware

• 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

Frontend

• Bootstrap - for responsible HTML layouts
• React - to create module user interface components
• jQuery - to ease javascript + DOM interaction

Backend

• 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

Quality

• 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