Circuit simulator for Mac OS X

runs on Mac
screenshot of MacSpice

Back in the day, when you wanted to design an electrical or electronic circuit, you used a "breadboard" to build your prototype. By plugging your components into the solderless sockets, it was easy to play "what if" games, easily tweaking and reconfiguring your design until you got it right. Fast forward to today, where everything is done on computers.

MacSpice is a virtual breadboard, that lets you design and build simulated circuits. Now instead of handsfull of diodes, resistors, and transistors, you string their virtual equivalents together to examine whether your design will actually do what you want it to do.

Now don't get the idea that you're going to be able to draw a schematic diagram and get your results from that—MacSpice isn't a WYSIWYG circuit board designer; rather you have to enter a text file description of your proposed circuit. It then analyses the electrical characteristics of that description to tell you how it would behave if you have plugged all the pieces into your Radio Shack equipment.

MacSpice is a Mac application. It's released as a Universal Binary, so you'll need to be running 10.3.9 or better to use the current version. They've still got older versions available for folks that are running systems as old as MacOS version 8.5.

Download MacSpice

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