CurseForge · Minecraft mod
Command Blocker
Adds a simple gamerule to quickly disable all command blocks
Quick answer
Which Command Blocker release should I use?
Command Blocker 2.0.0 targets 1.21, 1.21.5, 1.21.4 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. 1 required mod needs a matching file.
Where it goes
Is Command Blocker required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Command Blocker 2.0.0 need?
Command Blocker 2.0.0. Change the file and its required mods may change too.
Install Fabric Language Kotlin, Kotlin for Forge first, but 1 required mod has no matching file for this setup. Do not mix loader builds to force a match.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Command Blocker without breaking your instance.
Built for Command Blocker 2.0.0. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Command Blocker 2.0.0. It targets 1.21, 1.21.5, 1.21.4 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Fabric Language Kotlin, Kotlin for Forge first, but 1 required mod has no matching file for this setup. Do not mix loader builds to force a match.
- 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 Command Blocker 2.0.0. It opens that exact file at the source.
About this project
What does Command Blocker add?
Command Blocker
Adds a simple new gamerule, commandBlocksEnabled, to the game to toggle whether command blocks are enabled while the game is running.
Why does this exist?
It exists for a few reasons, firstly, because this is just not possible in singleplayer. Ever placed down a repeating command block with /tp @a 0 90 0 or something similar? This is for then.
In multiplayer, in the server.properties, there is a setting called enable-command-block - so you would think this mod is useless. It is not. Modifications to your server.properties are only applied on server start, so you cannot change this setting while the server is running. HOWEVER, this can be a security problem on servers, so please only install this mod if you trust all your operators/admins.
Bisect Partnership
Project description from CurseForge.
Pick your setup
Command Blocker by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.5
2 loader builds1.21.4
2 loader builds1.21.3
2 loader builds1.21.2
2 loader builds1.21.1
2 loader builds1.21
2 loader builds1.20.6
1 loader build1.20.5
1 loader build1.20.4
1 loader build1.20.3
1 loader build1.20.2
1 loader build1.20.1
1 loader buildShowing the newest 12 of 13 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Command Blocker versions and loaders
Command Blocker 2.0.0
blocker-2.0.0-neoforge.jar
7 Jun 2025
Command Blocker 2.0.0
blocker-2.0.0-fabric.jar
7 Jun 2025
Command Blocker 1.0.0
blocker-1.0.0.jar
4 Jun 2024
Command Blocker 0.1.1
CommandBlocker-0.1.1.jar
9 Mar 2024
Command Blocker 0.1.0
CommandBlocker-0.1.0.jar
9 Mar 2024
Looking for an older file? The official CurseForge project page is in Resources.