GNU Octave - GNU Octave is a programming language for scientific computing.

Defonic - Create a unique sound environment at home or in the office

Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processing—and gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.

Noisli - Noisli is a fantastic background noise and color generator for working and relaxing. Online soothing ambient sounds like White noise, Rain and Coffee Shop.

Maxima - Maxima is a fairly complete computer algebra system written in Lisp with an emphasis on symbolic computation.

Noizio - Feeling that the noise of the big city is too much for you to bear?