LibreOffice
Freeware
You are not recommended to use LibreOffice beta builds for "mission-critical".
21
University of Colorado
94
Freeware
Fun, interactive, research-based simulations of physical phenomena.
15
University of Colorado
430
Freeware
Build circuits with resistors, light bulbs, batteries, and switches.
Daniel Stahl, Kevin Wellwood
62
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.
Anadigm
1
Freeware
Build your circuit by dragging and dropping Configurable Analog Modules.
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.
LibreOffice
2
Freeware
LibreOffice is the power-packed free, libre and open source personal.
LibreOffice
74
Freeware
LibreOffice is an open source project and you can therefore download.
LibreOffice in the Cloud on your Own Terms.
27
Matt Pyne
6,472
Open source
Draw electrical circuit diagrams and PCB netlist files.
25
Moeller Software
259
Shareware
EASY-SOFT is a graphic editor for representation of the circuit diagram.
203
Cadence Design Systems, Inc
15,161
Freeware
PSpice Student is an analog circuit simulator designed for students.