ParFormer is an innovative software tool designed to optimize the parallel operation of power transformers in electrical grids. By accurately calculating load distribution and enabling the efficient use of existing transformers, it reduces the need for purchasing new equipment. This leads to significant resource savings and lowers costs. Consequently, ParFormer accelerates the expansion and modernization of power networks, supporting a faster transition to smarter and more resilient grids. The project combines advanced algorithms with practical engineering to enhance grid stability and sustainability.