KubeX

Development toolkit for KubeJS with dedicated workspaces, Rhino compatibility and source-level debugging.

by wheedo07Game mechanics Library Utility

NeoForge

Loaders: NeoForge
Downloads on Modrinth: 175
Followers on Modrinth: 1
versions: 4
Updated: October 9, 2026Oct 9
Published: in 2026

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At a glance

A library: other mods need it

Runs on NeoForge

For Minecraft 1.21.1

Needed in the game; optional on the server

Latest version — 1.21.1-0.0.9-neoforge from October 9, 2026

Requires Rhino and KubeJS

Where it's needed

In gamerequiredOn serveroptional

Needed in the game; optional on the server

Game versions1.21.1

KubeX

KubeX is a development workspace for KubeJS.

It keeps your source code in kubex/, builds it with esbuild, converts the output for Rhino/KubeJS, and synchronizes the final files into kubejs/.

Features

JavaScript and TypeScript workspace setup
/kubex init js and /kubex init ts
/kubex build runs npm install when needed, then npm run build
/kubex sync publishes scripts, assets, data, and config to KubeJS
Rhino compatibility post-processing
Source map support and /kubex doctor
Debug mode for callback errors
Optional rebuild and sync when the game server starts
/kubex export creates a standalone KubeJS mod JAR

ProbeJS

KubeX works with ProbeJS.

ProbeJS handles typings and editor metadata. KubeX copies .probe, .vscode, and jsconfig.json into the workspace when available, then handles the build and runtime workflow.

Export

/kubex export packages the compiled workspace as a separate mod.

The exported JAR requires KubeJS, but does not require KubeX. It includes processed KubeJS scripts, assets, data, and a small plugin that loads the scripts from the JAR.

Requirements

KubeJS
Node.js for workspace builds

Commands

/kubex init js
/kubex init ts
/kubex build
/kubex sync
/kubex export
/kubex debug on
/kubex debug off
/kubex doctor <group> <line> [column]

FAQ

How to install KubeX?

Install NeoForge for your Minecraft version, download KubeX for the same version and loader, put the file into the mods folder and launch the game with the loader profile.

Which Minecraft versions does KubeX support?

KubeX has builds for Minecraft 1.21.1.

Is KubeX needed on the server?

Needed in the game; optional on the server

License and source

MIT Licensefree to use and share with credit to the author

Original — Modrinth↗Files unchanged, verified with SHA-512Is this your mod? For rights holders