you can use notepad++ version 7.5.3 https://notepad-plus-plus.org/download/v7.5.3.html and the compare plugin v 2.0.0 from here
My personal blog
you can use notepad++ version 7.5.3 https://notepad-plus-plus.org/download/v7.5.3.html and the compare plugin v 2.0.0 from here