Minecraft version
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CurseForge · Minecraft mod
Undo!
Misplaced a block? Press Z to undo it! (Compatible with multiplayer!)
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which Undo! release should I use?
Latest stable file Undo 1.0.6 (26.3 Fabric)
Game version 26.3
Loader Fabric
Undo! Undo 1.0.6 (26.3 Fabric) targets 26.3 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Undo! 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 Undo! Undo 1.0.6 (26.3 Fabric) need?
Undo 1.0.6 (26.3 Fabric). 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 Undo! without breaking your instance.
Built for Undo! Undo 1.0.6 (26.3 Fabric). Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Undo 1.0.6 (26.3 Fabric). It targets 26.3 with Fabric; 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 this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside Undo 1.0.6 (26.3 Fabric). It opens that exact file at the source.
About this project
What does Undo! add?
This mod is Compatible with multiplayer!
I hate it when I am building and I can't undo stuff! Well, that will no longer happen! Press Z (Rebindable in keybinds) to get back the last block you placed!
No more explanations needed!
Well, maybe yes, the following actions will remove your ability to "undo" since otherwise you might dupe stuff and no one likes that!:
If the blocked is no longer in that position, you can't undo.
If you died, you can't undo.
If the block is a tile entity (Like shulker boxes) you can't undo.
That's it!
Project description from CurseForge.
Pick your setup
Undo! by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Minecraft version
26.2
1 loader buildMinecraft version
26.1.2
1 loader buildMinecraft version
1.21.1
2 loader buildsMinecraft version
1.20.1
2 loader buildsMinecraft version
1.18.2
1 loader buildMinecraft version
1.17.1
1 loader buildMinecraft version
1.16.5
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Undo! versions and loaders
Undo 1.0.6 (26.3 Fabric)
undo-1.0.6+26.3-fabric.jar
22 Oct 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 26.3 · Fabric setup Fabric26.3 release
Undo 1.0.6 (26.3 NeoForge)
undo-1.0.6+26.3-neoforge.jar
22 Oct 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 26.3 · NeoForge setup NeoForge26.3 release
Undo 1.0.6 (26.2 Fabric)
undo-1.0.6+26.2-fabric.jar
22 Oct 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 26.2 · Fabric setup Fabric26.2 release
Undo 1.0.6 (26.1.2 NeoForge)
undo-1.0.6+26.1.2-neoforge.jar
22 Oct 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 26.1.2 · NeoForge setup NeoForge26.1.2 release
Undo 1.0.6 (1.21.1 Fabric)
undo-1.0.6+1.21.1-fabric.jar
22 Oct 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · Fabric setup Fabric1.21.1 release
Undo 1.0.6 (1.21.1 NeoForge)
undo-1.0.6+1.21.1-neoforge.jar
22 Oct 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · NeoForge setup 1.21.1NeoForge release
Undo 1.0.6 (1.20.1 Fabric)
undo-1.0.6+1.20.1-fabric.jar
22 Oct 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.20.1 · Fabric setup Fabric1.20.1 release
Undo 1.0.6 (1.20.1 Forge)
undo-1.0.6+1.20.1-forge.jar
22 Oct 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
Undo! 1.0.5 1.18.2.jar
23 Mar 2022
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.18.2 · Forge setup 1.18.2Forge release
Undo! 1.0.5 1.17.1.jar
23 Mar 2022
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.17.1 · Forge setup 1.17.1Forge release
Undo! 1.0.5 1.16.5.jar
23 Mar 2022
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.16.5 · Forge setup 1.16.5Forge release
Undo 1.17.1.jar
5 Nov 2021
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.17.1 · Forge setup 1.17.1Forge release
Looking for an older file? The official CurseForge project page is in Resources.
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