Introduction

Inspired by Logisim and CircuitVerse, LogicPlot is a free, open-source digital logic simulator that runs entirely in your web browser. Students, educators, engineers and hobbyists can drag gates, flip-flops, multiplexers, memories and other elements onto a canvas, wire them together and watch signals propagate live, exploring "what-if" scenarios without installing anything. Figure 1.1 shows a ripple carry adder built in LogicPlot.

Figure 1.1: Ripple carry adder simulation built using LogicPlot

Everything happens on your machine. There are no accounts and no server: projects are saved to your browser's local storage or exported as files that you can share, version and open again later. Circuits can also be exported as high-resolution images or as Verilog, and Verilog modules can be brought back in as subcircuits.

This documentation walks through the simulator interface (Chapter 3), the full circuit element library (Chapter 4), subcircuits and layouts (Chapter 5), timing diagrams (Chapter 6), a complete build-and-test walkthrough (Chapter 7) and reference material such as Verilog support, error messages and keyboard shortcuts (Chapter 8).