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.

Emerald Bank (MineClone2)
NathanielFreeman

Keep your Emeralds in a Bank

Area Containers
jwmhjwmh

Adds nodes that contain areas in which you can build

Modgen
BuckarooBanzai

mapgen mod creator

Connected Chests
Hybrid Dog

Allows making bigger default chests.

itemshelf (Fork)
nac

Generic item shelf with 3D items on display

ATM Redo
CodeMiner

Adds an ATM (Automatic Teller Machine) and MWT (Money Wire Transfer) designed to work with the currency mod and its minegeld banknotes.

SF Inventory Bags
TenPlus1

Adds a BAGS tab to SF Inventory with slots for different size bags to store items

Satchel
Avicennia_g

Attempt at adding a formspec-less inventory interface.

i3
jp

A next-generation inventory

Void Chest
MeseCraft

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

Claycrafter
Dragonop

Introduces the Claycrafter, which converts Compressed Dirt to Clay using Glasses of Water.

Advanced Chest (Clone From Mineclone2)
Emojiminetest

Add useful chests (Linkable chest, Shulker box) to game

Virtual Key
louisroyer

Adds virtual keys registerers.

Keyring
louisroyer

Adds keyrings.

Storage Drawers
LNJ

Adding simple storages for items, showing the item's inventory image in the front.

Ocular Networks
PolySaken

Draw power from the world, and use it to power machines and tools.