LockItem-Fabric

Item Lock Mod

A client-side Fabric mod for Minecraft 1.21.1 that prevents accidental drops of hotbar items.

Features

- 🔒 Lock hotbar items (slots 1-9) to prevent dropping - 💾 Persistent locks (saved between game sessions) - 🎨 Visual lock indicator on items - ⌨️ Quick toggle with keybind (default: L) - 💬 Command-based control system - ✅ Works with vanilla, modded, and custom server items - 🎮 Compatible with Cobblemon and other mods

Commands

All commands are client-side only:

``` /lockitem lock - Lock currently held item /lockitem lock <1-9> - Lock specific hotbar slot /lockitem unlock - Unlock currently held item /lockitem unlock <1-9> - Unlock specific hotbar slot /lockitem toggle - Toggle lock on held item /lockitem list - List all locked slots /lockitem clear - Unlock all items /lockitem help - Show help message ```

Keybind

- L - Quick toggle lock on currently held item

Installation

1. Install Fabric Loader 0.17.2+ 2. Install Fabric API 0.116.6+ 3. Download the mod JAR 4. Place in `.minecraft/mods` folder 5. Launch Minecraft 1.21.1

Configuration

Config file location: `.minecraft/config/itemlock.json`

The config automatically saves locked slots and will restore them on next launch.

How It Works

- Locks are slot-based (hotbar slots 0-8) - Item fingerprint validation prevents accidental drops if items swap - Drop attempts are blocked at the client level - Visual indicators: 🔒 emoji overlay and tooltip - Compatible with custom NBT items from servers