3D Without Boundaries
Computer Algebra System written in Common Lisp
A portable, multi-platform, command-line driven graphing utility
A premier mind-mapping software written in Java
FlightGear Flight Simulator: free open-source multiplatform flight sim
An interactive viewer for three-dimensional chemical structures.
General Mission Analysis Tool
Scanning probe microscopy data visualisation and analysis
End to end data integration and analytics platform
2D & 3D TeX-Aware Vector Graphics Language
Toolkit for working with and mapping geospatial data
Data Analysis, Simulations and Visualization on the Sphere
Viking is a free/open source program to manage GPS data
Open source finite element software for multiphysical problems
The official NFFT library repository
A library for scientific data visualization
Cross-platform, scientific graphics plotting library
The cross-platform library behind the Hugin photo stitcher