Circuit playground

Circuit playground online — free

Educational voltage divider and LED series resistor calculator (no CircuitJS).

Use the tool

Full tool — runs in your browser. No sign-up required.

लोड हो रहा है...

What does this circuit playground tool do?

Educational voltage divider and LED series resistor calculator (no CircuitJS). Open the tool in your browser — no account or install required.

Does it support Voltage divider helper?

Yes — voltage divider helper.

Is my data sent to a server?

No — processing runs locally in your browser. Your files and inputs do not leave your device unless the tool explicitly uses the network.