Pure Java Network Tools
jRCaLc is a program designed to aid you in working with resistors.
ultimative units calculation and conversion tool and library
AlphaCentauri is a completely free Office tools application.
Set of tools that help CNC machinists
Life cycle assessment tutorial to complete a product carbon footprint
The network calculator with many tools for IPv4,IPv6
Idea bank for projects using MonoDevelop
Python for calculators
Zwicker's Loudness Calculation (ISO532B) Tools