Make managing backpack inventories fast, clean, and effortless — without opening chests one by one.
Quickstack Backpacks Compat is a Forge 1.20.1 addon that seamlessly integrates Quickstack/DropOff with Sophisticated Backpacks, adding Quickstack and Dump buttons directly to the backpack screen.
With a single click, items are moved from your backpack (and optionally your inventory) into nearby containers using Quickstack’s trusted logic.

Quickstack and Dump buttons appear naturally in the backpack UI, positioned per backpack tier for maximum usability.
Button positions are fully configurable and hot-reloaded — no client restart needed.
quickstack)sophisticatedbackpacks)Generated file:
config/quickstackbackpackscompat-client.toml
includePlayerInventory (default: false)false: only backpack items are moved true: backpack + player inventory are moved (respects Quickstack ignoreHotBar)File:
config/quickstackbackpackscompat_button_positions.json
"*"defaultsThis allows precise control over button placement for every backpack tier.
Found a bug, UI misalignment, or compatibility issue?
Please report it on GitHub with logs, screenshots, and your mod list if possible:
➡️ Issues tracker:
https://github.com/Maeiro/Quickstack-Backpacks-Compat/issues
This mod is released under the GNU General Public License v3.0 (GPL-3.0).
You are free to:
Any redistribution or derivative work must remain open-source and comply with the terms of the GPL v3.0.
This project is licensed under the GNU General Public License v3.0.
See the LICENSE file for the full license text.