STM32 Utils is a free Android application developed by MartinLoren, categorized under Utilities & Tools. It offers easy flashing of STM32 Chipsets with several available DIY projects and firmware options. The app supports Binary (.bin) and Intel Hex (.hex) firmware file formats. It requires an OTG-Cable + USB-To-Serial cable or HC-05 Bluetooth Module for connection, with connection instructions provided on the website.

The app supports several tested STM32 Boards including STM32F103C8T6 (Blue Pill), STM32F407 (Black Board), STM32F401Blue Pill), and Nucleo STM32L053. The app features several functions including getting chipset info, erasing memory, writing firmware, loading firmware, and enabling/disabling readout protection. The full version of the app also includes a Bluetooth flashing option.