ZFlasher STM32 is a software developed by ZDevs that allows users to flash STM32 and STM8 microcontrollers. This program supports a wide range of STM32 series, including STM32F1, F2, F3, F4, F7, L0, L1, L4, L5, U5, G0, G4, H7, WB1, WB3, WB5, WL5, and C0, as well as GD32 and AT32 series. It also works with ST-LINK v1, v2, and v3, J-Link, CMSIS-DAP, and DFU Bootloader.

For the program to work properly, your device must support USB Host (OTG). The software provides users with an easy-to-use interface, making it accessible for both beginners and advanced users. ZFlasher STM32 is a free software that allows users to flash their microcontrollers without any hassle.