Short Circuit

Build simple circuits by snapping parts onto the board.

Components

Batteries

Switches

2-pin

3-pin (COM, NO, NC)

Illuminated (LED pins)

Illuminated 3-pin

LEDs

Loads

Sensors

Laser Optics

Emitter Detector Optics

Resistors

Capacitors

3–6 V 6–12 V 12–24 V

Potentiometer

Regulators

555 Timer

Relays

Microcontroller

Displays

Connections

Tools

Board

Demos

Add .json files to demos/ — they are listed automatically.

Save & Load

Download or upload your circuit as a file to make backups.

Circuit Board

1) Add parts while the board is off and use the Wire tool to connect red pins (+) to blue pins (−). 2) Flip the power switch to turn the board on or off. 3) Toggle: click to open/close. Push-to-make / Push-to-break: hold the switch down while the board is on.

100% Tool: Move

Ready to place (max 2)

Combine:

Component Info

Click a part to see its details.

Advanced: View / paste JSON

Use Save to File and Load from File above for backups. Or copy/paste JSON here to share.