circuitjs1
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Description:
Electronic circuit simulator
Type: Cask  |  Latest Version: 3.1.3js@0  |  Tracked Since: Dec 17, 2025
Links: Homepage  |  formulae.brew.sh
Category: Developer tools
Tags: electronics simulation circuit-design education engineering
Install: brew install --cask circuitjs1
About:
CircuitJS1 is a browser-based electronic circuit simulator that runs locally on macOS. It provides an interactive environment for designing, simulating, and analyzing analog and digital circuits using a comprehensive component library. The tool enables real-time visualization of voltage and current waveforms without requiring external hardware.
Key Features:
  • Interactive drag-and-drop circuit builder with real-time simulation
  • Comprehensive library of analog and digital components
  • Built-in oscilloscope and signal analysis tools
  • Circuit sharing via URL or file export
Use Cases:
  • Educational instruction for electronics and circuit theory
  • Rapid prototyping and testing of circuit designs before physical build
  • Hobbyist electronics experimentation without hardware investment
Alternatives:
  • LTspice – More powerful SPICE simulator but steeper learning curve and requires installation
  • Tinkercad Circuits – Web-based with Arduino simulation but requires account and internet connection
Version History
Detected Version Rev Change Commit
Aug 24, 2025 8:51pm 3.1.3js 0 VERSION_BUMP 3ffd4140