Keil Software develops, manufactures, and distributes embedded software development tools for 8051, 251, and C166/ST10 microcontroller families. We provide ANSI C compilers, MACRO Assemblers, real-time executives, debuggers & simulators, integrated environments, and evaluation boards. This web site provides the latest information about our development tools, evaluation tools, software updates, application notes, example programs, and links to other sources of information.

Keil Software was founded in 1986, to market add-on products for the development tools provided by many of the silicon vendors. It soon became evident that there was a void in the marketplace that must be filled by quality software development tools. It was then that Keil Software implemented the first C compiler designed specifically for the 8051 microcontroller.

Today, Keil Software markets a broad range of development tools for the embedded systems marketplace. Our products include ANSI C compilers, macro assemblers, debuggers, linkers, library managers, and real-time operating systems. Products such as these have helped Keil become the world's leading developer of Embedded Systems software.

Since its beginning, Keil has driven the industry to new heights with advanced software technology. Our constant, hard-driving research has paid off time and again as we continue to develop innovative products that make product development easier.