Reticulum ESP-NOW Firmware Flasher

Flash firmware to ESP32 boards via USB from your browser (Chrome/Edge only)

1 Connect Board

Plug your ESP32 board into USB. Some boards require holding BOOT while pressing RESET.

Version: Firmware Type: Board / Variant:

-- or load from file --

Choose firmware (.zip or .bin)

Full flash erase before flashing

View device output after flashing (pairing PIN, boot messages). Connect to the same port at 115200 baud.

Web Serial API required. Supported: Chrome 89+, Edge 89+, Opera 76+. NOT supported: Firefox, Safari, iOS.