ImproperUI Mod introduces a CSS‑inspired scripting system for building custom user interfaces inside Minecraft. It’s designed to make rendering and UI creation more approachable for mod developers by leveraging familiar HTML/CSS‑like structures.
Features:
- Simplifies Minecraft rendering with CSS‑inspired scripting.
- Supports draggable, scrollable, and interactive UI elements.
- Allows creation of buttons, sliders, inputs, labels, headers, and more.
- Provides event handling through callbacks linked to script events.
- Includes helper methods to collect and query UI elements by ID or class.
- Offers configuration support with modular config keys for saving values.
- Integrates directly into mods via ImproperUI API initialization.
Screenshots:
ImproperUI Mod Download Links
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: In MC Java Mods, or directly above on this page.
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
- Downloads as 83867.mcaddon
- Download size: 209 KB
- Download link checked 23 Sept 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.