ModsJava
PainterJS
The author built this one for Minecraft 1.21.1 on NeoForge. On other versions it may install and then do nothing.
PainterJS (KubeJS Addon)
PainterJS is a specialized addon for KubeJS on Minecraft 1.21.1 that re-introduces the client-side PaintAPI.
Credits & Original Content
This project is a port and restoration of the PaintAPI functionality originally developed by the KubeJS team.
- Original Mod: KubeJS
- Original Authors: LatvianModder / KubeJS Team
How this project differs
In recent versions of Minecraft (1.20+), the core KubeJS mod removed the legacy PaintAPI. PainterJS acts as a compatibility bridge and feature restoration:
- Restored Functionality: It re-implements the
paintevent, allowing developers to render custom visuals and shapes directly to the HUD. - 1.21.1 Support: This addon specifically brings back these "lost" features for modern 1.21.1 environments.
- Development Workflow: Unlike the new core KubeJS methods, this allows developers to use the classic PaintAPI syntax they are familiar with from older versions of the mod.
Features
- Full integration with KubeJS script loading.
- Dynamic, script-controlled UI elements..
Note: This mod requires KubeJS to be installed.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as painterjs-1.2.0.jar — drop this file into the mods folder
- Download size: 207 KB
- Download link checked 12 Sept 2026 — working
These come from our own check of the pack file, not from the source page.