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Minecraft Java 1.21 Mods

Browse 15 free mods for Minecraft Java 1.21 — popular picks include Create Compressed, GalaxyByne's Mailboxes, Stackraft.

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Create Compressed
1.21.1neoforge

Create Compressed

Adds full blocks for raw materials. Have less micro-management & more storage space!

629kdownloads
GalaxyByne's Mailboxes
1.21.7

GalaxyByne's Mailboxes

A simple to use, multiplayer friendly mailbox datapack using addresses as recipients.

9.4kdownloads
Stackraft
1.21.11

Stackraft

Compress farm items like sugarcane, gunpowder, and more to save space. Works with the new Auto Crafters. Perfect for managing large farms and keeping your inventory organized.

3.5kdownloads
Traveler's Backpack ATM Upgrades
1.21.1neoforge

Traveler's Backpack ATM Upgrades

This mod adds backpacks to the game, like shulkerboxes, but can be upgraded to get more space, this is for those people that likes to travel with all his items

2.2kdownloads
Fantastic Smelting
1.21.3forge

Fantastic Smelting

A small mod to boost your smelting-experience. Allows you to smelt raw resource blocks, saving you time and space.

386downloads
Even more Fantastic Smelting
1.21.3fabric

Even more Fantastic Smelting

A small mod to boost your smelting-experience. Allows you to smelt raw resource blocks, saving you time and space. Adds various recipes from the furnace to the blast furnace.

367downloads
Little Adventure
1.21.8fabric

Little Adventure

Adds a backpack for extra inventory space, a torch wand for quick lighting, a mine helmet, and changes some item mechanic like holding compass will show coordinates and clock will display time.

357downloads
CommunityVault
1.21

CommunityVault

A shared vault with unlimited space for all players on the server

270downloads
Anything Blocks
1.21.8fabric

Anything Blocks

Minecraft mod that lets players convert various items - from materials to food - into blocks. Its main purpose is compact storage, saving space and simplifying resource management.

188downloads
FirmaLifeHardCore
1.21.1neoforge

FirmaLifeHardCore

A mod that completely overhauls Firmalife's cellar and greenhouse mechanics — no Climate Station required. Enclosed spaces are auto-detected via BFS floodfill with dynamic AABB tracking. Any insulating blocks form a functional cellar or greenhouse.

118downloads
Delivery Rocket Mod
1.21.1fabric

Delivery Rocket Mod

This mod adds rockets, which deliver items!

105downloads
Bundle plus
1.21

Bundle plus

Bundle+ is a plugin that adds extra space in your bundle and easy to handle gui and smart storage system

71downloads
Unslotted
1.21.1neoforge

Unslotted

Removes a considerable portion of your inventory slots, turning them into a space you can drag items around freeform instead.

34downloads
O
1.21

Omni Space

A Minecraft Paper plugin that provides players with private storage dimension spaces.

46downloads
I
1.21.4fabric

InventoryRightclickBackspace

Makes it so u can use backspace as right click in inventory for people that dont want to set up keyboard place and want to rebind their rightclick to backspace and still use is as right click in minecraft.

35downloads