15
University of Colorado
430
Freeware
Build circuits with resistors, light bulbs, batteries, and switches.
4
Alain MICHEL
19
Shareware
It allows you to make drawings of printed circuit in single or double layers.
13
Sunstone Circuits
1,220
Freeware
Handle and design complex printed circuit board effortlessly.
Megasys Software
7
Shareware
For calculation of meshed or ring main type of circuit network.
27
Matt Pyne
6,472
Open source
Draw electrical circuit diagrams and PCB netlist files.
1
Capilano Computing Systems Ltd
193
With DesignWorks Lite you can draw professional circuit diagrams.
Catena Software Ltd.,Diodes Inc
58
Freeware
Allows you to draw a circuit which can be tested in simulation.
1
Design Master Software, Inc.
4
Commercial
draw receptacles/equipment/calculate circuit loads/panel loads/voltage.
1
NetScout System, Inc.
29
Commercial
Sniffer Analysis provides unsurpassed segment-by-segment deep packet analysis.
8
the Qucs team
3,049
Open source
Quite Universal Circuit Simulator is an integrated circuit simulator.
13
Richard P. Andresen
1,147
Shareware
Use analog circuit simulation for the professional circuit designer.
3
ABB
329
Freeware
Air circuit breakers can be used both as circuit-breakers for general protection.
2
General CADD Products, Inc.
23
Shareware
Allows you to easily and accurately draw anything you might normally draw.
SAN People (Pty) Ltd
10
Freeware
Finds EtherPADs on the network (local segment of the LAN).