ItemGUI

Custom Item GUI is a Minecraft Java Fabric 1.21.11 mod that lets players create and manage custom items directly inside the game without manually writing commands. With /i create, players can open a GUI to choose a base Minecraft item, set a custom display name, add lore, apply enchantments, select a PNG texture, and assign special right-click abilities such as lightning, fireball, teleport, explosion, healing, speed, jump boost, and strength.
The mod can generate a resource pack automatically for selected item textures, making it easier to use custom PNG artwork in-game. Created items are saved so they can be opened later with /i browse, where players can view, give, or delete their custom items. In creative mode, items are placed directly into the selected hotbar slot.