Application porting is the process of adapting software so that it can run on a different platform or operating system than the one it was originally designed for. This often involves modifying the code to ensure compatibility with the new environment, which may include changes to user interfaces, system calls, and libraries. The goal of application porting is to make software accessible to a wider audience by enabling it to function on various devices, such as moving an application from a Windows environment to macOS or from iOS to Android. This helps developers reach more users and enhances the software's overall usability.