i3
jp

A next-generation inventory

Offhand Items
TestificateMods

Lets you equip nodes and place them without switching tools

vexcazer
AiTechEye

Ultimate build+mine & admin tool

Complete and Total Lua-Only Inventory Rewrite
Noodlemire

Creates a completely custom inventory system, which doesn't rely at all on any of the usual UserData objects.

Void Chest
MeseCraft

Access your belongings anywhere by using the power of the void chest!