Triple Inventory
by hbop
Triple Inventory extends the player's storage reach: shulker boxes and ender chests can be opened from anywhere in the inventory, and the hotbar gains extra slots.
What it does
Right-clicking a shulker box or ender chest opens its contents inside the inventory screen, so items can be added and taken without leaving the view. The mod adds up to 72 inventory slots, including 18 extra hotbar slots, and the number of new columns on each side of the main inventory is set by the extendedInventorySize gamerule, with a default of 3 and a maximum of 9. A value of 0 turns the extra inventory off.
The mod is a Fabric build for 1.21.3 – 1.21.8 that runs on the client and the server, so both sides need it. It requires Fabric API and YetAnotherConfigLib (YACL), and Mod Menu is optional for opening its settings. Its source code is published under the MIT License, and the project is open source.
Key features
Extended inventory columns
Extra columns are added to either side of the main inventory, and the gamerule controls how many appear.
Extended hotbar
Up to 18 additional hotbar slots are reachable with the scroll wheel, and a HUD indicator can show the extended hotbar.
Automatic tool selection
An optional setting switches the hotbar to a tool suited to the block being mined, and marks the previously selected slot.
Shulker box preview
Shulker previews take the background colour of the box and can be placed at the bottom, top, left or right of the screen.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Optional 1
Use cases
Storage-heavy survival
Players who carry many shulker boxes or ender chests can reach their contents from the inventory without placing them.
Tool switching while mining
Players who switch tools often can let the hotbar pick a suitable tool automatically, with a hotkey to change slots.
Who it’s for: Players who want more inventory space on Fabric, and server owners who want to enable it for every player on a server running 1.21.3 – 1.21.8.
How it compares
Offhand Hotbar is a client-side only Fabric mod under the MIT License and is open source, for 1.21.1 – 1.21.10, and it adds an offhand slot rather than extra inventory storage. 2x Inventory + Dedicated Elytra Slot is a client and server Fabric mod under the Apache License 2.0, published for 1.21.10 and not open source, and it doubles the inventory with an elytra slot.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Triple Inventory | Fabric | 1.21.3 – 1.21.8 | Client and server | 2025-08-16 |
| Offhand Hotbar | Fabric | 1.21.1 – 1.21.10 | Client-side only | 2025-10-06 |
| 2x Inventory + Dedicated Elytra Slot | Fabric | 1.21.10 | Client and server | 2026-04-13 |
Questions
Does Triple Inventory need Fabric API?
Does the server need the mod?
How is the number of extra columns changed?
Which game versions are supported?
In the catalog
Triple Inventory is one of 4,058 Storage mods on ModsFinder, and one of 2,474 Storage mods for Fabric. 17,695 mods support Minecraft 1.21.8.
More from hbop
Similar mods
What the author says
This mod can add up to 72 new inventory slots, including 18 new hotbar slots - these slots are also accessible in containers. You can access shulker boxes and ender chests from your inventory by right clicking them - including adding and taking items.
Official listing
- Modrinth page
- modrinth.com/mod/triple-inventory
- Owner
- hbop
- Published
- 2024-11-21
- Updated on Modrinth
- 2025-08-16
- Facts verified
- 2026-10-15