simulator.io

simulator.io is an online CAD tool for logic circuits. Easiest way to learn how to build logic circuits.

Easy To Use Place Select an element. Place it on the board.

Connect Use the Wire Tool to connect your elements.

Test your circuit Click RUN to start the simulation.

Share and collaborate Collaborate with your team in real-time or share a snapshot of your work.

Design everything on logic level from a simple light switch to a complex CPU.

It's free.