How do I install CubeUI?

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. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does CubeUI work with?

The listing gives Minecraft 1.20.1. This is the version stated by the author or source site, not something we verified ourselves.

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CubeUI

Java mod listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.

by Denmoth · on Modrinth

A lightweight, modular UI library for Forge featuring a robust theming engine, 9-slice rendering, and essential widgets for building scalable interfaces.

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CubeUI (Library)

Last Update:

Version: 0.1.0 – beta
Date: 2025-12-29
Highlights: Added Theme Engine; implemented 9-slice rendering system; added essential widgets; implemented debug overlay.
Status: first beta

CubeUI is a lightweight, modular UI Library for Minecraft Forge. It provides a robust framework for creating complex, scalable user interfaces with built-in theming support and high-performance rendering helpers. Designed to make modding UIs easier and more consistent.

Features

Advanced Theming System: A centralized ThemeManager allows hot-swapping textures and styles for all registered widgets.
Smart Rendering: Built-in 9-slice (panels) and 3-slice (buttons/fields) rendering support. No more stretched textures.
Essential Widgets: Includes a collection of standard, themable widgets ready for immediate implementation.
Debug Tools: Includes a built-in debug overlay for developers (Press Ctrl + Shift + U).
Vanilla Friendly: The default theme mimics the vanilla aesthetic perfectly but can be fully customized.

Usage

Full documentation and implementation examples are available on the wiki (click the Documentation badge above).

To access the developer debug menu in-game, use: CTRL + SHIFT + U

Requirements

Minecraft: Forge 1.20.1+ (Check file versions)
Loader: Forge Only
Dependencies: None (Standalone Library)

License

MIT – free to use in your own projects, modpacks, and addons.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.20.1
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 Modrinth — 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.

File checked by MCModsHub

Ships as cubeui-0.1.0-alpha.jar — drop this file into the mods folder
Download size: 154 KB
Download link checked 21 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

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