Circuit Simulator

Mode

Tool

Clear
Undo
Verify
Simulate
Export
Import

You can add nodes and wires to the diagram with this tool. Drag and drop nodes from these panels to the canvas on the right to add them to the diagram. Click on a pin of a node to start wire drawing process. Then click on another pin, another wire or any space on the canvas to place and route the wire.

Inputs
Outputs

You can remove nodes with this tool. Click on any node to delete it. You can also remove a segment of wire by clicking on the end of it or at any junction of two or more wires.

You can move nodes with this tool. Click on any node to select it. You can also move wires by selecting their end or any junction of two or more wires. Click on any empty space in canvas to move the selected item.

Add IO Pin

Clear Confirmation

Potential loss of work ahead!

Clearing the diagram cannot be undone and all unsaved progress will be lost!

Are you sure you want to continue?

Verify Succeeded!

Good job! That's a valid CMOS circuit. This message does NOT mean it completes the assignment.

Verify Failed!

That's not a valid circuit!

Change Mode

Potential loss of work ahead!

Changing the mode cannot be undone and all unsaved progress will be lost!

Are you sure you want to continue?

Confirm Delete

Potential loss of work ahead!

Deletion cannot be undone and if it is a node it will delete all wires connected to it!

Are you sure you want to continue?

Export Diagram

Copy text below and save as desired.

IMPORTANT: the entire text must be saved. Use copy button or select all text with control/command-a and then copy with control/command-c

Import Succeeded!

Circuit was successfully imported!

Import Failed!

Circuit could not be imported!

Import Diagram

Enter text from export below.

Simulation Done