SIRIUS Ui

Json UI Engine for Minecraft Java Edition

167.1K Downloads

fabricforgeneoforgedecorationgame-mechanicsutility

Configure a Compatible Minecraft Server

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About this Mod

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Minecraft UI Enhancement Mod

Json Ui Engine for Minecraft Java Edition

What is this?

SIRIUS Ui is a UI enhancement mod powered by a JSON-driven Widget component system. Define game interfaces by writing JSON files — no Java code required.

SIRIUS Ui is open source under the HaoTianA License v1.0.

Installation

Place the Mod JAR file into your .minecraft/mods/ directory
Launch the game

Author

AlanHT520

Available Versions

SIRIUS Ui 0.4.87-Dev.65alpha

MC 1.21.1neoforge

August 9, 2026

SIRIUS Ui 0.4.87-Dev.65alpha

MC 1.20.1forge

August 9, 2026

SIRIUS Ui 0.4.86-Dev.64alpha

MC 1.21.1neoforge

July 14, 2026

SIRIUS Ui 0.3.8 NeoForgealpha

MC 1.21.1neoforge

May 4, 2026

SIRIUS Ui 0.3.8 Fabricalpha

MC 1.21.1fabric

May 4, 2026

How to Install SIRIUS Ui on Your Client

Install the Mod Loader Locally

Install fabric for your local Minecraft version.

Download the Matching File

Choose the SIRIUS Ui file for fabric and Minecraft 26.1.2.

Install Mod

Place the .jar file in your local .minecraft/mods folder and restart Minecraft. No server-side installation is required.

Compatibility

Mod Loaders

fabricforgeneoforge

Minecraft Versions

26.1.2, 26.1.1, 1.21.11 (+9 more)

Server-side

✗ Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Does SIRIUS Ui need to be installed on the Minecraft server?

No. Modrinth marks SIRIUS Ui as unsupported on the server side. Install it only in your local Minecraft mods folder. Your server can remain unchanged unless the mod page lists an additional dependency.

Which version and loader does SIRIUS Ui require?

Use a file for fabric, forge, neoforge and your exact Minecraft version. Supported versions include 26.1.2, 26.1.1, 1.21.11. Files for different loaders are not interchangeable.

SIRIUS Ui is not working – what should I check?

First check the Minecraft version, loader version and required dependencies. Put the .jar file in your local .minecraft/mods folder and remove older duplicates. Because this mod is client-side, adding server RAM will not fix it.