This mod is for people who are interested in how much NBT data their items hold
Minecraft nbt size max is 2MB
using packet fixer you can change the max and it displays it as the max and that its modded (Packet Fixer - Minecraft Mods - CurseForge)
Using the default keybind "Y" while hovering over items will show:
Size: ##KB (or MB, or GB)
Max size: ##MB (or GB if you add Packet Fixer)
