Firmware - Web Serial

ESP32 Web Flasher

Flash firmware onto an ESP32 straight from the browser. No Python, no esptool install. Works in Chrome and Edge from version 89.

Settings

Firmware file (.bin)

Flash offset

Default: 0x0 for normal firmware, 0x10000 for OTA partitions

Erase all flash regions first (erase all)

Instructions

Flash Log

ESP32 web flasher ready.
Select the firmware and click 'Flash'.

Note: ESP32-S3 → hold BOOT/USR while plugging in.