Microchip Technology Inc.

Free
MPLAB X IDE allows you to develop applications for Microchip microcontrollers.
Free
A free software to estimate average current consumption and battery life for Microchip's PIC MCUs featuring XLP technology
Free
Access, configure, and modify your CAN network
Free
Microchip's SEEVAL kit provides all the tools needed to quickly develop a reliable Serial EEPROM design
Free
The Wireless Development Studio allows you to develop wireless applications
Free
Compiles and organizes code for PIC18 MCU programming
Free
Compile and edit data for microcontrollers
Free
Develops and modifies PIC and dsPIC-based apps
Free
Produces highly-optimized code for all 8-bit PIC MCUs