Desktop tool · Windows / Linux

ESP32 Firmware Flasher

Flash ESP32 firmware from your desktop, without installing Python or PlatformIO.

Pick a serial port, choose your firmware binary and flash address, then follow the progress in the app. Supports ESP32, S2, S3, C3, C6 and H2, with chip detection, baud-rate presets and optional verification.

Python, esptool and serial support are bundled. Extract the entire download and keep its folders together; USB-to-serial drivers or Linux serial-port permissions may still be needed.

ESP32 Firmware Flasher desktop window with bundled tool selection, serial port, firmware and address controls — Choose the image and address explicitly; erase is off by default.

Packaged ESP32 Firmware Flasher running on Windows 10 — ESP32 Firmware Flasher on Windows.

Downloads

Download for Windows x64 · ZIP · SHA-256

Download for Linux x86-64 · ZIP · SHA-256

Flash the ESP32-CAM firmware

Download and extract the ESP32-CAM firmware ZIP. Select binaries/esp32-cam-flash.bin, choose esp32 and the merged-image preset at 0x0.

For an ESP32-CAM, ground GPIO0 during reset to enter download mode, flash, then disconnect GPIO0 and reset again. Confirm the image matches your board. Flashing replaces existing firmware; enabling Erase also removes saved configuration. Back up anything you need first.

Licence

User-owned application code and documentation: CC BY-NC-SA 4.0. Bundled Python, Qt/PySide6, esptool and other components retain their own licences, supplied with the download.

Compatibility

Windows 10/11 x64; Linux x86-64 with glibc 2.39 or newer (Ubuntu 24.04-class systems), a graphical desktop and Qt system libraries. The Windows executable is unsigned.