Browser Flasher

Flash2MQTT Installer

Install *2MQTT firmware directly from your browser for ESP8266 and ESP32 boards.

Workflow

Flash in three steps

  1. 1
    Choose firmware and board

    Select the matching firmware family and the exact hardware variant.

  2. 2
    Connect your device

    Use USB or a serial-to-USB adapter and put the board into flash mode if needed.

  3. 3
    Start the web flasher

    Press Connect, pick the serial port, and let ESP Web Tools handle the upload.

Installer

Select your target

Firmware Not selected
Variant Not selected
Chip Unknown

Select a firmware to load available variants.