A circuit simulator with graphical user interface (GUI)
A free GNU/GPL educational digital photogrammetric workstation
A windowed/full-screen countdown timer.
Precision Trigonometry: Advanced Calculator for Complex Math
A collection of interactive educational exercises
a free cross platform precise unit converter, supports 6000+ units
Easy Monitor is set of SuperKaramba themes and bash scripts
The Future of the Java Circuit Simulator
Library Clock for GCC (C++)
GaRLiC=Gambas Raw Lines of Code, a Gambas2 code library for use in SMB
Digital/Analog signals visualization tool
dark themed version of free Audacity sound editor