This is the documentation for esptool - a Python-based, open-source, platform-independent utility for flashing, provisioning, and interacting with Espressif SoCs. Esptool communicates with the …

esptool A Python-based, open-source, platform-independent serial utility for flashing, provisioning, and interacting with Espressif SoCs.

ESP Tool A Serial Flasher utility for Espressif chipsView the API Documentation

Flash your ESP32 or ESP8266 through your browser. Open-Source, free, and easy to use.

Feb 6, 2025 · With esptool.py, you now have full control over flashing, backing up, and managing your ESP32 firmware. Whether you're installing ESPHome, setting up MicroPython, or …

In this major release, esptool was refactored, and some breaking changes were introduced. See the v5 Migration Guide article in the documentation for a detailed list of changes and guidance …

Apr 21, 2016 · esptool was initially created by Fredrik Ahlberg (@ themadinventor), and later maintained by Angus Gratton (@ projectgus). It is now supported by Espressif Systems.

You will need Python 3.10 or newer installed on your system to use the latest version of esptool. If your use case requires Python 3.7, 3.8, or 3.9, please use esptool v4.x.

Use esptool -h to see a summary of all available commands and command line options. To see all options for a particular command, append -h to the command name. ie esptool write-flash -h.

esptool.py can easily be integrated into Python applications or called from other Python scripts. While it currently does have a poor Python API, something which #208 will address, it allows …