PCK Studio

previously MinecraftUSkinEditor A minecraft for Wii U editor

Modify .PCK archives as you please!

Open and Save .PCK archives
Edit the entry data for .PCK archives (This means custom names, models, animations, entire custom packs, etc. etc.)
Replace, Add or Remove files from the archives. (AKA add/remove/replace skins, maps, textures packs and more!)
Edit localization data to make your mods support every language supported by minecraft itself!
Add/Remove localization objects
PNG previewing
And much more!