Backpack Opener

Backpack Opener

A client-side mod to make using handheld GUI items like backpacks and books quicker

by
726 Downloads
forgeutility
Rent Server with this Mod

Screenshots

Backpack Opener Screenshot 1
Backpack Opener Screenshot 2

About this Mod

Backpack Opener

Overview

A client-side mod to make using handheld GUI items quicker, For example:

  • Backpacks
  • Wireless terminals
  • Books

Open them by simply right-clicking it in your inventory GUI.
It automatically swaps the item to your active hand and open it. After closing the GUI of item, the item is swapped back and you're back in your inventory.

Right-click on the item Opened the GUI
Before After

Config

Entries are managed by crafttweaker.

It's suggested to only write entries in a script with #sideonly client Preprocessor. Otherwise it will cause errors on dedicated server, because this mod is client only.

Usage:

// Items to add quick open on, sneak when opening the item
mods.bpopener.BPOpener.addEntry(IIngredient item, boolean sneaking);

Example:

#sideonly client
mods.bpopener.BPOpener.addEntry(<minecraft:writable_book>,false);
mods.bpopener.BPOpener.addEntry(<minecraft:written_book>,false);
mods.bpopener.BPOpener.addEntry(<appliedenergistics2:wireless_terminal>,false);
mods.bpopener.BPOpener.addEntry(<appliedenergistics2:portable_cell>,false);

Notes

Don't use this on a server that disallows auto-refill or similar features, unless this mod is explicitly allowed.

Available Versions

1.1.0release
MC 1.12.2forge
September 21, 2025
1.0.1release
MC 1.12.2forge
December 2, 2024
1.0release
MC 1.12.2forge
November 26, 2024

How to Install Backpack Opener on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.12.2).

3

Install Mod

Open the mod browser in the dashboard and search for "Backpack Opener". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

forge

Minecraft Versions

1.12.2

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Backpack Opener server crashes on startup – what to do?

Most common cause: wrong forge 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 (1.12.2). You can switch loaders with one click in the panel.

Is Backpack Opener compatible with forge?

Backpack Opener officially supports forge for Minecraft 1.12.2. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Backpack Opener – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Backpack Opener 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.

Rent Modded Server

Install Backpack Opener with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
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1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Unsupported

Supported Versions

1.12.2