Wokwi is a simulator for embedded systems and IoT devices. It provides an online environment where you can prototype, debug, and share your ESP32 projects without needing the physical hardware. The simulator runs right in your web browser, and can simulate all the chips in the ESP32 family: the classic ESP32, as well as the S2, S3, C3, C6, and H2 variants. Additional microcontroller families are available as well.