PyRaspOnline Raspberry Pi simulator
Try a Raspberry Pi in your browser
Run a Raspberry Pi simulator in your browser with no sign-up: an LED, a button and a buzzer wired in Python, ready to run and change. Short a pin to ground and watch it get damaged.
The circuit is wired in circuit.py and the Pi runs main.py, real Python with gpiozero. Press Run, hold the button on the board, then change the code.
Loading the simulator needs JavaScript. Your first circuit walks through the same example.