CircuitLab provides online, in-browser tools for schematic capture and circuit simulation. These tools allow students, hobbyists, and professional engineers to design and analyze analog and digital …

CircuitLab provides online, in-browser tools for schematic capture and circuit simulation. These tools allow students, hobbyists, and professional engineers to design and analyze analog and digital …

The Basics Build Mode The editor always starts in Build Mode. You can switch to Simulate Mode by clicking the "Simulate" button along the bottom toolbar. Click a component in the Build Box to select …

BJT current mirror Circuit BJT audio amplifier Circuit JFETs JFET-based Electret Microphone Amplifier Circuit MOSFETs MOSFET and Resistor NAND Gate Circuit MOSFET Switching Inductive Loads …

Table of Contents The Basics Build Mode Ground Nodes Named Nodes Voltmeter and Ammeter Human-Friendy Inputs Plotting Outputs DC Simulation DC Sweep Time-Domain Simulation …

Public circuits, schematics, and circuit simulations on CircuitLab.

Op-Amp Circuits Simulated Three Ways Scroll through the screenshots below to learn how to analyze op-amp circuits at DC, in the time domain, and in the frequency domain. Press / (forward slash) to …

A helpful sequence of short tutorials teaching how to draw and simulate circuits.

Digital Logic, Gates, Clocks, and Memories Working with digital circuits is easy in CircuitLab. Scroll through the screenshots below to learn how to build and simulate digital and mixed-mode circuits. …

Nov 19, 2025 · Free Q&A forum for electronics and electrical engineering students, hobbyists, and professionals — with built-in schematic and simulation software.