CB Toolkit
by DeltaElement
CB Toolkit gives command block builders a set of Fabric tools for tagging, annotating and converting coordinates inside command block edits.
What it does
Toolkit command blocks let a builder annotate a command block with tags, navigate between tagged blocks and edit them from one place, instead of right-clicking through vanilla command block screens over and over. A dedicated screen lists the tags on a block and allows tags to be added or removed. Coordinate conversion and a converter overlay that shows notes, tags and coordinates sit alongside the editing tools.
The mod is client-side only, so only the player's client needs it and a server can run without it. It works with command block duplication, so copied builds keep their annotations. Files are published for Fabric only, across eight release versions 1.21.4 – 1.21.11, and the code is covered by All rights reserved, so it is not open source. No required dependency is listed for Fabric.
Key features
Command block toolkit
A set of tools inside the command block editor for working on large builds without repeated vanilla edit steps.
Tags and navigation
Command blocks can be annotated with tags and moved between by tag, so long command chains are easier to follow.
Tag management screen
A dedicated screen adds and removes tags on a block and lists the tags it carries.
Coordinate conversion
Coordinates can be converted within the toolkit, and a converter overlay shows notes, tags and coordinates together.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Command block builders who maintain large Minecraft Java Edition projects and want tagging and coordinate tools in the client. Players who only play survival without command blocks will find little use in it.
How it compares
Nether Cords Converter is also client-side only and runs on Fabric for 1.21 – 1.21.11, released under a Creative Commons Attribution Non Commercial No Derivatives 4.0 license and not open source, so it is a converter without the tagging tools. Retro converter is a client and server mod for Fabric covering 1.21.1 – 1.21.11 under All rights reserved, which means it must also be installed on every server that players join. Mousie Builder Toolkit works with Fabric for 1.21.11 and is set to client and server, so it is a builder toolkit that needs both sides.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| CB Toolkit | Fabric | 1.21.4 – 1.21.11 | Client-side only | 2026-09-14 |
| Nether Cords Converter | Fabric | 1.21 – 1.21.11 | Client-side only | 2026-08-16 |
| Retro converter | Fabric | 1.21.1 – 1.21.11 | Client and server | 2026-07-27 |
| Mousie Builder Toolkit | Fabric | 1.21.11 | Client and server | 2026-07-14 |
Questions
Does CB Toolkit need to be installed on the server?
Which Minecraft versions does CB Toolkit support?
Does CB Toolkit work with copied command block builds?
In the catalog
CB Toolkit 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.
Similar mods
What the author says
A client-side toolbox built for command block users. Annotate, tag, and navigate your command block builds without endless right-clicking through the vanilla edit screen.
Official listing
- Modrinth page
- modrinth.com/mod/cb-toolkit
- Owner
- DeltaElement
- Published
- 2026-08-21
- Updated on Modrinth
- 2026-09-14
- Facts verified
- 2026-10-15