Open source STM32 MCU programming toolset
Debugging and programming interfaces for Freescale microcontroller
Serial Bootloader for Microchip, Atmel, NXP, TI, 8051 microcontrolers
MinGW GCC cross development environment for ARM.
MinGW GCC cross development environment for Power PC.
MinGW GCC cross development environment for M68K.
a self-contained development environment for embedded systems.
Software build-automation tool written in Common Lisp
An ISP programmer for 8051 family, without a microcontroller
Simple USB flash memory programmer.
Atmel AVR universal bootloader with flash CRC
ISP Flash Programmer for Linux
parallel port programmer for every chip