https://www.microchip.com/en-us/tools-resources/develop/mplab-xc-compilers/downloads-archive
The compiler is distributed as a single installer that can be activated in several modes, including a "Free" mode that can be used indefinitely. Microchip Technology XC8 C Compiler Version 2.05 Release Notes for PIC mplab xc8 compiler v2 05 download free
: Choose the installer compatible with your operating system: Windows ( .exe ), Linux ( .run ), or macOS ( .app ). https://www