how to compress video size without losing quality

Today I am presenting you a software that reduce your video size without losing of quality.

I have noticed many times when I record a video on my mobile phone it has very big size. and the storage space need to have big. and sometimes we are uploading a video to youtube it has large size and its causes are data consume and waste of time. It can be very easy by a software.
I also make a video for this trick visit the following link then you will get it better,,,
https://youtu.be/dQyeqYG7zB4