FizzyCalc

FizzyCalc allows simple conversion of coordinates to various formats.
Jmol

An open-source Java viewer for chemical structures in 3D
VizUp

Polygon reduction software tool, polygon reducer for optimize 3D models file size
rattleCAD

A graphical tool to design a bicycle(s) geometry and derive drawings from its configuration
DWSIM

Open-source chemical process simulator written in VB.NET, with advanced thermodynamic calculations, reactions support and much more
FreeCAD

FreeCAD - the Open Source 3D CAD/CAE program
ProfiCAD

ProfiCAD is the quickest and easiest way to create electrical documentation and schematic diagrams.
VariCAD Viewer

Feature rich, easy to use CAD viewer
FidoCadJ

A multi-platform editor for electronics
Mini CAD Viewer

Mini CAD Viewer is a compact, lightweight and free CAD viewer that was created to be easy to use, even for those with no prior CAD experience.
BearboatSP

BearboatSP is a program for designing and building custom kayaks and canoes.
Halley

A free software for management and working with the regularly updated database of comets
QBlade

An open source wind turbine calculation software
SpaceCAD

The handy SpaceCAD application will allow you to easily design your own rockets.
QTHextool

Free tool for performing mathematical operations and conversions between Hex and Decimals
Secure Folder is a tiny, easy-to-use folder security software that lets you hide, loc...
Desktop iCalendar is a handy tool that allows users manage events, todos, sync with t...
View internal and external IP, country of origin and more with this handy Windows gad...
Talking Desktop Clock - powerful application that adds new features to your Windows s...