Fabric API Needed by Overflow Hopper Fix 1.0.0 - Fabric 1.21.11
requiredMatching file found Matched file: [1.21.11] Fabric API 0.141.6+1.21.11
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CurseForge · Minecraft mod
Overflow Hopper Fix
A small Fabric addon that improves stacked Copper Hopper overflow behavior for vertical storage systems.
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Quick answer
Which Overflow Hopper Fix release should I use?
Latest stable file Overflow Hopper Fix 1.0.0 - Fabric 1.21.11
Game version 1.21.11
Loader Fabric
Overflow Hopper Fix 1.0.0 - Fabric 1.21.11 targets 1.21.11 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. All 2 required mods have matching files.
Where it goes
Is Overflow Hopper Fix required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Fabric
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
The source does not explicitly classify this release as client-only or server-only.
What else does Overflow Hopper Fix 1.0.0 - Fabric 1.21.11 need?
Overflow Hopper Fix 1.0.0 - Fabric 1.21.11. Change the file and its required mods may change too.
Install Fabric API, Copper Hopper first. We found matching files for this game-version and loader setup.
Copper Hopper Needed by Overflow Hopper Fix 1.0.0 - Fabric 1.21.11
requiredMatching file found Matched file: copperhopper-fabric-0.20.4+1.21.11.jar
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Overflow Hopper Fix without breaking your instance.
Built for Overflow Hopper Fix 1.0.0 - Fabric 1.21.11. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Overflow Hopper Fix 1.0.0 - Fabric 1.21.11. It targets 1.21.11 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric API, Copper Hopper first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside Overflow Hopper Fix 1.0.0 - Fabric 1.21.11. It opens that exact file at the source.
About this project
What does Overflow Hopper Fix add?
Copper Hopper Overflow Fix is a small unofficial Fabric addon for the Copper Hopper mod.
It improves the behavior of stacked Copper Hoppers in vertical storage systems. Normally, when the chest connected to a lower Copper Hopper is full, items can get stuck inside the hopper buffer before the next available chest is filled. This addon changes that behavior so items can continue through the Copper Hopper stack and move to the next available hopper and chest instead.
This is especially useful for filtered storage systems where multiple chests are stacked vertically for the same item type, such as stone, cobblestone, dirt, wood, or other bulk storage items.
The mod only affects Copper Hoppers and is designed to keep normal vanilla hopper behavior unchanged.
Features:
- Improves overflow behavior for stacked Copper Hoppers
- Prevents items from getting stuck in full Copper Hopper buffers
- Allows items to continue to the next available chest in vertical storage setups
- Useful for filtered mass storage systems
- Does not replace Copper Hopper
- Does not change vanilla hopper behavior
Requirements:
- Fabric Loader
- Fabric API
- Copper Hopper
Tested with:
- Minecraft 1.21.11
- Copper Hopper 0.20.4+1.21.11
This is an unofficial addon for Copper Hopper and is not affiliated with the original Copper Hopper author.
Project description from CurseForge.
Pick your setup
Overflow Hopper Fix by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Minecraft version
1.21.11
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Overflow Hopper Fix versions and loaders
Overflow Hopper Fix 1.0.0 - Fabric 1.21.11
overflow-hopper-fix-1.0.0.jar
19 Jun 2026
Client Source doesn’t say Server Source doesn’t say Dependencies 2 required · matched Listed on Release listing
Check the 1.21.11 · Fabric setup Fabric1.21.11 release
Looking for an older file? The official CurseForge project page is in Resources.