CurseForge · Minecraft mod
Backpack Side GUI - KOTS
Interactive Side GUI of Sophisticated Backpacks in every Screen
Quick answer
Which Backpack Side GUI - KOTS release should I use?
Backpack Side GUI - KOTS backpack-side-gui-kots-1.21.1-2.0.0-neoforge-1.21.1-hf.1.jar targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 2 required mods have matching files.
Where it goes
Is Backpack Side GUI - KOTS required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Backpack Side GUI - KOTS backpack-side-gui-kots-1.21.1-2.0.0-neoforge-1.21.1-hf.1.jar need?
backpack-side-gui-kots-1.21.1-2.0.0-neoforge-1.21.1-hf.1.jar. Change the file and its required mods may change too.
Install Sophisticated Backpacks, Sophisticated Core first. We found matching files for this game-version and loader setup. 13 come through another mod in the chain.
13 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Backpack Side GUI - KOTS without breaking your instance.
Built for Backpack Side GUI - KOTS backpack-side-gui-kots-1.21.1-2.0.0-neoforge-1.21.1-hf.1.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use backpack-side-gui-kots-1.21.1-2.0.0-neoforge-1.21.1-hf.1.jar. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Sophisticated Backpacks, Sophisticated Core first. We found matching files for this game-version and loader setup. 13 come through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside backpack-side-gui-kots-1.21.1-2.0.0-neoforge-1.21.1-hf.1.jar. It opens that exact file at the source.
About this project
What does Backpack Side GUI - KOTS add?

Backpack Side GUI KOTS
Backpack Side GUI KOTS is an add-on for Sophisticated Backpacks which adds an interactive backpack panel to the side of container screens, allowing you to access your backpack without opening the original backpack GUI separately.
Original: Backpack Side GUI
Features
- Displays an interactive backpack side panel next to the player inventory and container screens
- Displays utility panels when the backpack has upgrades
- Supports inserting, extracting, swapping, and merging items
- Mouse wheel scrolling for backpack contents
- Drag-to-distribute item stacks
- Double-click to collect matching items
- Displays stack sizes above 64
- Move button for repositioning the side panel
- Show/hide button for toggling the backpack panel
- Supports Curios
- Support JEI: fill from all backpacks & fill to interactive utility panels
- Multiplayer-friendly design: item operations are handled on the server side
Differences from the original mod
- Refactor the base of the mod; now the side panel will directly control the backpack, no virtual container
- So all item duplicates or loss will be fixed
- Refactor the whole mod with modern GUI code design
- Remove all Reflect Methods
- Improve performance: only 3.5% usage of the original mod
Project description from CurseForge.
Pick your setup
Backpack Side GUI - KOTS by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Backpack Side GUI - KOTS versions and loaders
backpack-side-gui-kots-1.21.1-2.0.0-neoforge-1.21.1-hf.1.jar
3 Sept 2026
backpack-side-gui-kots-1.21.1-2.0.0-neoforge-1.21.1.jar
31 Aug 2026
Looking for an older file? The official CurseForge project page is in Resources.