HTML [HTML][Twine][SugarCube] Best image and video compressor?

NeoSpectre

i snatched defeat from the jaws of victory
Game Developer
Sep 7, 2022
56
246
Well, as the title says, I would like to know the best, better put, most efficient ways of compressing images before shipping the game. What software do you use as a developer if you are one? Preferably free, please. I am developing a Twine SugarCube game with images and gifs, so I guess I would like a software that can bulk compress them all at once.
And I do apologize if this question has already been asked somewhere but I legit can't find any post related to this.

Thanks for any help that I receive :)