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


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 |
|---|---|
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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
How to Install Backpack Opener on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.12.2).
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
Minecraft Versions
1.12.2
Server-side
✗ UnsupportedRecommended 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.
Similar Mods
Rent Modded Server
Install Backpack Opener with just one click on your server.