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SDM UI Lib Mod for Minecraft 1.20.1, 1.21.1

A simple library that will simplify the creation of interfaces

from Sixik · Modrinth
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2 downloads
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Updated
Updated 30.09.2026

About the SDM UI Lib mod

This library is designed to simplify the creation of interfaces Designed to replace FTB Library in SDM mods

What are the features

  • RGB/RGBA
  • Drawing primitives such as triangles, squares, circles
  • Simplified interaction with rotation, scale, and render priority
  • Render Items, Entity, Blocks on GUI
  • Containers that allow you to animate elements
  • Lots of widgets
  • The ability to place objects in an area with random positions, rotations and sizes
  • And more

How to install SDM UI Lib

With Millida Launcher

  1. Install Millida Launcher

    The launcher is free: download it at millida.net/launcher and sign in with any nickname.

  2. Click “Install” on this page

    The launcher opens and installs the mod for Minecraft 1.19.2–1.21.1 on Fabric, Forge or NeoForge automatically.

  3. Launch the game

    A profile with it appears in the launcher: click “Play”.

Manually

  1. Install Fabric, Forge or NeoForge

    The loader must match the game version of the mod file, for example Minecraft 1.21.1. After installing it, a separate profile appears in your launcher.

  2. Download the file for your version

    In the version list above, pick the file sdmuilibrary-neoforge-1.21-1.9.2.jar (7.5 MB) for your game version and loader.

  3. Put it in the mods folder

    The folder is inside .minecraft (Windows: %appdata%\.minecraft\mods). If it does not exist, create it.

  4. Launch the loader profile

    Open “Mods” in the main menu: SDM UI Lib should be in the list.

SDM UI Lib works on the player’s side only: there is no need to install it on a server.

Minecraft 1.21.1 runs on Java 21: with a different Java version the game may close right after launch.

Versions

With dependencies

MinecraftLoaderFileDateActions
1.21.1NeoForge1.21.17.5 MB
1.21.1Fabric1.21.17.5 MB
1.20.1Fabric1.20.1250 KB
1.20.1Forge1.20.1255 KB 2
1.19.2Fabric1.19.275.7 KB
1.19.4Forge1.19.479 KB
1.20.1Forge1.20.1246 KB
1.20.1Fabric1.20.1240 KB

FAQ

Which Minecraft versions does SDM UI Lib work on?

There are files for 1.21.1, 1.21, 1.20.1, 1.19.4, 1.19.3, 1.19.2. The newest is 1.21.1.

Is SDM UI Lib for Forge or Fabric?

There are files for Fabric: 1.19.2–1.21.1, for Forge: 1.19.2–1.20.1 and for NeoForge: 1.21–1.21.1.

Does SDM UI Lib need other mods?

The author lists no required dependencies: the Fabric, Forge or NeoForge loader is enough.

Do I need to install SDM UI Lib on a server?

No. SDM UI Lib works on the player’s side only: there is no need to install it on a server.

Which Java does SDM UI Lib need?

Minecraft 1.21.1 runs on Java 21. If the game closes right after launch, the usual cause is the wrong Java version in the profile settings.

Where can I download SDM UI Lib safely?

On this page: the file sdmuilibrary-neoforge-1.21-1.9.2.jar (7.5 MB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: 3e9e2f93ddb2c12e61750db050c3d48dbf6dacd5.

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Author: SixikLicense: MIT

Are you the author? Contact us — we will take it down within 48 hours.