SimulIDE
SimulIDE is a simple real time electronic circuit simulator, intended for hobbyist or students to learn and experiment with simple electronic circuits and microcontrollers, supporting PIC, AVR and Arduino.
Link: https://www.simulide.com/p/downloads.html
Circuit Simulator
Link: https://www.falstad.com/circuit/
EveryCircuit
EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in Chrome,Firefox,Edge browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.
Link: https://everycircuit.com/app/
*Atualizado em 17 de fevereiro de 2022