Qt: Qt is a cross-platform application and UI framework for developers using C++ or QML, a CSS & JavaScript like language (released under LGPL v3.0 license).
Boost: Boost provides free peer-reviewed portable C++ source libraries (released under Boost license).
jQuery: jQuery is a fast and concise JavaScript Library that simplifies HTML document traversing, event handling, animating, and Ajax interactions for rapid web development (released under MIT license).
Marray: Fast runtime-flexible multi-dimensional arrays and views in C++ (released under Marray license; developed by Bjoern Andres. Please direct enquiries concerning the Marray package to bjoern@andres.sc).
muParser: muParser is an extensible high performance math expression parser library written in C++ (released under muParser license).
SlickGrid: a lightning fast JavaScript grid/spreadsheet (released under MIT license).
jsPlumb: jQuery JavaScript library that lets you connect parts of your UI together (released under MIT license).
Flot: a pure JavaScript plotting library for jQuery, with a focus on simple usage, attractive looks and interactive features (released under MIT license).
Trip.js: a jQuery plugin for implementation of tutorials directly in the interface (released under MIT license).