Hotbar Inventory Transfer

A Fabric mod for Minecraft 1.21.10 that allows you to quickly transfer items from your hotbar to your inventory using a customizable keybind.

Features

• Press a key (default: R) while holding a hotbar item to instantly move it to your inventory
• No need to open your inventory screen
• Fully customizable keybind in Minecraft's Controls settings
• Lightweight and client-side only

Installation

1. Install Fabric Loader for Minecraft 1.21.10
2. Download and install Fabric API version 0.138.4+1.21.10 or later
3. Place this mod's JAR file in your .minecraft/mods folder
4. Launch Minecraft with the Fabric profile

Building from Source

Prerequisites

• Java 21 or higher
• Git (optional)

Setup

1. Create the project structure:

hotbarinventorytransfer/
├── src/
│   └── main/
│       ├── java/
│       │   └── com/
│       │       └── example/
│       │           └── inventoryswap/
│       │               └── InventorySwapMod.java
│       └── resources/
│           ├── fabric.mod.json
│           └── assets/
│               └── inventoryswap/
│                   └── lang/
│                       └── en_us.json
├── build.gradle
├── gradle.properties
└── settings.gradle

2. Create settings.gradle:

pluginManagement {
   repositories {
       maven {
           name = 'Fabric'
           url = 'https://maven.fabricmc.net/'
       }
       gradlePluginPortal()
   }
}

3. Place all the provided files in their correct locations:

• InventorySwapMod.java → src/main/java/com/example/inventoryswap/
• fabric.mod.json → src/main/resources/
• en_us.json → src/main/resources/assets/inventoryswap/lang/
• build.gradle → root directory
• gradle.properties → root directory

4. Build the mod:

./gradlew build

The compiled JAR will be in build/libs/inventoryswap-1.0.0.jar

🎮 How to Use

1. Hold any item in your hotbar
2. Press R (or your configured key)
3. The item instantly moves to your inventory - stacking with matching items first, then finding empty slots

🔧 Technical Details

• Minecraft Version: 1.21.10
• Mod Loader: Fabric
• Fabric Loader: 0.17.3 or higher
• Required: Fabric API 0.138.4+1.21.10 or later
• Side: Client-side (can be installed on client only in multiplayer)

License

MIT License - Feel free to modify and redistribute

Notes

• If your inventory is full, the swap won't happen
• The mod only affects the client-side, so it works on any server
• Compatible with most other inventory mods