15
University of Colorado
430
Freeware
Build circuits with resistors, light bulbs, batteries, and switches.
Daniel Stahl, Kevin Wellwood
59
Open source
Build and simulate boolean logic circuits with custom components.
Megasys Software
7
Shareware
For calculation of meshed or ring main type of circuit network.
2
University of Colorado, Department of Physics
117
Freeware
It is simply a graphical representation of what a resistor does in a circuit.
Summit Electronics Ltd
83
Freeware
Save time and money developing your PIC projects using QuickBuilder.
8
the Qucs team
3,041
Open source
Quite Universal Circuit Simulator is an integrated circuit simulator.
13
Richard P. Andresen
1,143
Shareware
Use analog circuit simulation for the professional circuit designer.
3
ABB
326
Freeware
Air circuit breakers can be used both as circuit-breakers for general protection.
G Element Pte Ltd.
3
Freeware
You can use the Building Composer Tool to quickly export your building models.
CANMET Energy Technology Centre (CETC)
2
Freeware
Compare your proposed building design against a building of similar design.
8
CS Odessa
14
Shareware
Building plan tools help architects and building engineers.
27
Matt Pyne
6,414
Open source
Draw electrical circuit diagrams and PCB netlist files.
25
Moeller Software
258
Shareware
EASY-SOFT is a graphic editor for representation of the circuit diagram.
203
Cadence Design Systems, Inc
15,067
Freeware
PSpice Student is an analog circuit simulator designed for students.
31
KiCad Developers Team
13,785
Open source
You can create schematic diagrams or printed circuit board with up to 16 layers.
