CurseForge · Minecraft mod
Demagnetize
Stop item magnets from destroying your automation!
This page is having a moment, so a few details may be a little behind.
Quick answer
Which Demagnetize release should I use?
Demagnetize 1.12.2-1.1.2 (Forge) targets 1.12.1, 1.12, 1.12.2 with Forge. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. No extra mods listed for this file.
Where it goes
Is Demagnetize required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
The source does not explicitly classify this release as client-only or server-only.
What else does Demagnetize 1.12.2-1.1.2 (Forge) need?
1.12.2-1.1.2 (Forge). Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Demagnetize without breaking your instance.
Built for Demagnetize 1.12.2-1.1.2 (Forge). Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.12.2-1.1.2 (Forge). It targets 1.12.1, 1.12, 1.12.2 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.12.2-1.1.2 (Forge). It opens that exact file at the source.
About this project
What does Demagnetize add?
Demagnetize
Item magnets are very helpful when mining, however they can disrupt item-based automation, such as the Atomic Reconstructor from Actually Additions. The Demagnetizer is a solution to this, which prevents item magnets from functioning within an area around them.
Demagnetizers can also be filtered or redstone controlled, so that they only activate when necessary. The Advanced Demagnetizer has a larger range and more filter slots.

Mod compatibility for 1.12
- Thermal series - Fixed completely with version 5.5.1 (minor bug previously)
- Actually Additions
- Botania - Requires r1.10-362 or newer
- Draconic Evolution - Fixed with version 2.3.18.329
- Ender IO - Fixed completely with version 5.0.43 (minor bug previously)
- Reliquary
- Simple Magnet - Fixed with version 1.2.11
- Not Enough Items 1.8+ - Fixed with version 2.4.2.243
- Quantum Flux - Fixed with version 2.0.17
- Pickle Tweaks - Fixed with version 2.1.0
- Better Magnets
- Tiered Magnets
- GregTech Classic - Fixed with version 1.0.3
Mod compatibility for 1.14+
I don't have time to maintain the compatibility list anymore but most mods seem to support the NBT tags now :)
For mod developers
If your mod has an Item Magnet, do not pick up items if the PreventRemoteMovement NBT tag exists on the EntityItem.
If your mod has a item collector block (e.g. the Ranged Collector or the Vacuum Chest), do not pick up items if the PreventRemoteMovement NBT tag exists on the EntityItem, but if the AllowMachineRemoteMovement NBT tag exists, ignore the previous NBT tag. This is to ensure that Item Magnets do not pick up items on conveyors or demagnetized items, while also ensuring that item collector blocks are not restricted by the Demagnetizer.
For more information, see this github issue (the CoFH issue had more information but was removed) and this pull request.
Project description from CurseForge.
Pick your setup
Demagnetize by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.16.4
1 loader build1.16.3
1 loader build1.16.2
1 loader build1.15.2
1 loader build1.14.4
1 loader build1.14.3
1 loader build1.14.2
1 loader build1.12.2
2 loader builds1.12.1
2 loader builds1.12
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Demagnetize versions and loaders
1.12.2-1.1.2 (Forge)
demagnetize-1.12.2-1.1.2.jar
23 Oct 2020
1.16.2-1.2.2 (Forge)
demagnetize-forge-1.16.2-1.2.2.jar
15 Aug 2020
1.15.2-1.2.2 (Forge)
demagnetize-forge-1.15.2-1.2.2.jar
15 Aug 2020
1.12.2-1.1.1 (Forge)
demagnetize-1.12.2-1.1.1.jar
30 Nov 2019
1.14.4-1.2.1 (Forge)
demagnetize-1.14.4-1.2.1.jar
20 Oct 2019
1.14.4-1.2.0 (Forge)
demagnetize-1.14.4-1.2.0.jar
14 Sept 2019
demagnetize-1.12.2-1.1.0.jar
12 Sept 2019
demagnetize-1.12.2-1.0.1.jar
8 Jan 2019
demagnetize-1.12.2-1.0.0.2.jar
21 Aug 2018
Looking for an older file? The official CurseForge project page is in Resources.