Auto Swap Offhand
Auto Swap Offhand - A Fabric mod for automatic item swapping between hands with customizable pairs and modified items support.
About this Mod
Auto Swap Offhand
Automated item swapping between main hand and offhand with hotkey support!
🎯 Features
Quick Swapping - Instant item exchange between hands
Customizable Pairs - Create any item combinations for swapping
Smart Recognition - Distinguishes items with different names and properties
Simple Interface - Built-in GUI for configuring swap pairs
Modified Items Support - Works with totems, enchanted items, and custom items
🎮 How to Use
Hotkeys:
K - Open configuration menu
L - Perform quick swap
Setting Up Swap Pairs:
Press K to open the menu
Select two items from the available list
Click "Add Swap Pair" to create a pair
Now use L for instant swapping!
🔧 Technical Features
Modification Awareness - Handles enchantments, custom names, damage levels
Safe Swapping - No item loss during exchange
Auto-Detection - Scans inventory for available items
📦 Installation
Install Fabric Loader
Place the mod in your mods folder
Launch the game and configure hotkeys!
📄 License
MIT License
Available Versions
How to Install Auto Swap Offhand on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Auto Swap Offhand". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1, 1.21
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Auto Swap Offhand server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.
Is Auto Swap Offhand compatible with fabric?
Auto Swap Offhand officially supports fabric for Minecraft 1.21.1, 1.21. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Auto Swap Offhand – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Auto Swap Offhand consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install Auto Swap Offhand with just one click on your server.