Command Block Editor
Command Block Editor lets a builder edit several command blocks in one window, and it can generate complete command block chains from a list of commands.
What it does
Looking at a command block and opening the editor loads that block's commands into the window. If no command block is in view, the editor creates a new one at the current position and opens it. Changes are saved with Ctrl + S and the editor is closed afterward.
A builder can write a batch of commands in one place, and the mod places them as a linked chain. Map makers, technical builders and anyone maintaining large command block setups can use it to manage many blocks at once. The mod is published for Fabric only, for 1.21 – 1.21.11, and it is licensed under the MIT License, so it is not open source.
It needs Fabric to run, and it works on the client and the server, so both the server and every player need the mod. The latest Fabric file, 5.0+1.21.11, targets 1.21.11 and was released on 2026-09-04. Files also exist for 1.21 and 1.21.1.
Key features
Multi-block editing
Several command blocks are edited together in one window rather than one at a time.
Open or create
The editor opens the command block being looked at, or creates a new one at the current position if none is there.
Chain generation
Writing a list of commands in the editor produces a complete command block chain automatically.
Iteration index
An iteration index and addition can be used while writing commands, so repeated entries follow a numbered pattern.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Hammer Editor is a Fabric client-side only mod with a different license, published under All rights reserved for 1.21.1, so it is not open source. Kashub is a Fabric mod under the MIT License for 1.21.1, required on the client while the server may skip it. FlowHud is a client-side only Fabric mod under All rights reserved, covering 1.21.1 – 1.21.11, so it is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Command Block Editor | Fabric | 1.21 – 1.21.11 | Client and server | 2026-09-04 |
| Hammer Editor | Fabric | 1.21.1 | Client-side only | 2026-04-11 |
| FlowHud | Fabric | 1.21.1 – 1.21.11 | Client-side only | 2026-02-01 |
Questions
Does Command Block Editor need Fabric API?
Does the server need Command Block Editor?
Which game versions does Command Block Editor support?
In the catalog
Command Block Editor is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 19,862 mods support Minecraft 1.21.11.
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What the author says
Command Block Editor is a utility mod that makes creating and managing command block systems much faster and more convenient. Instead of editing command blocks one by one, you can write multiple commands in a single editor and automatically generate complete command block chains.
Official listing
- Modrinth page
- modrinth.com/mod/command-block-editor
- Owner
- commandblocks0
- Published
- 2026-05-30
- Updated on Modrinth
- 2026-09-04
- Facts verified
- 2026-10-15