Help with Spritesheet (or trying to make one) with steemdya

Hey... Anyone know of a good spritesheet generator (other than texturepack because you need the "pro" paid version to make spritesheets over 4K ) ? Because i have been using my 3D models under unity to try it but eventually we need sprites if we want to make a light game that can be played on multi platforms ^^ ( we don't exclude a pc version with 3d models down the road too tho :D )

Or any place, any ressource i can turn my mind to , even tutorials, i've never made sprite sheets for a 2d game like this so...

Please halp.

Also, don't forget yo follow /subscribe HitmanChoi ( aka Hive account@roundbeargames )without him nothing would be possible on this project ! Don't forget the member of our team (we are two for now ! hihi ! )