ImproperUI Mod (1.21.8, 1.20.1) 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:

Crafting Recipes:

Recommend that you should install Just Enough Items (for mods using Forge) or Roughly Enough Items (for mods using Fabric) to view the full recipes included in this mod.

Requires:

Fabric API

How to install:

Click the following link to view details: How to Install Mods for Minecraft Java Edition on PC: A Beginner Guide

ImproperUI Mod (1.21.8, 1.20.1) Download Links

For Minecraft 1.20.1, 1.20

Fabric version: Download from Server 1 – Download from Server 2

For Minecraft 1.20.4, 1.20.2

Fabric version: Download from Server 1 – Download from Server 2

For Minecraft 1.20.6

Fabric version: Download from Server 1 – Download from Server 2

For Minecraft 1.21.1, 1.21

Fabric version: Download from Server 1 – Download from Server 2

For Minecraft 1.21.8, 1.21.7, 1.21.6

Fabric version: Download from Server 1 – Download from Server 2

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