CurseForge · Minecraft mod
SIRIUS Ui
Json UI Engine for Minecraft Java Edition
Quick answer
Which SIRIUS Ui release should I use?
SIRIUS Ui [NeoForge 1.21.1] v-0.4.86-Dev.64.jar targets 1.21.1 with Fabric, NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is SIRIUS Ui required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does SIRIUS Ui [NeoForge 1.21.1] v-0.4.86-Dev.64.jar need?
SIRIUS Ui [NeoForge 1.21.1] v-0.4.86-Dev.64.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add SIRIUS Ui without breaking your instance.
Built for SIRIUS Ui [NeoForge 1.21.1] v-0.4.86-Dev.64.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use SIRIUS Ui [NeoForge 1.21.1] v-0.4.86-Dev.64.jar. It targets 1.21.1 with Fabric, NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside SIRIUS Ui [NeoForge 1.21.1] v-0.4.86-Dev.64.jar. It opens that exact file at the source.
About this project
What does SIRIUS Ui add?
SIRIUS Ui
### 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
Project description from CurseForge.
Pick your setup
SIRIUS Ui by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.1
1 loader build1.21.11
1 loader build1.21.10
1 loader build1.21.9
1 loader build1.21.8
1 loader build1.21.7
1 loader build1.21.6
1 loader build1.21.5
1 loader build1.21.4
1 loader build1.21.1
2 loader builds1.20.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
SIRIUS Ui versions and loaders
SIRIUS Ui [NeoForge 1.21.1] v-0.4.86-Dev.64.jar
14 Jul 2026
0.3.8
SIRIUS Ui v-0.3.8 [Neo 1.21.1].jar
4 May 2026
0.3.8
SIRIUS Ui v-0.3.8 [Fabric 1.21.1].jar
4 May 2026
0.3.7
SIRIUS Ui v-0.3.7 [Neo 26.1.2].jar
3 May 2026
0.3.7
SIRIUS Ui v-0.3.7 [1.21.1 Neo].jar
3 May 2026
0.3.7
SIRIUS Ui v-0.3.7 [26.1.1].jar
2 May 2026
0.3.7
SIRIUS Ui v-0.3.7 [1.21.1].jar
2 May 2026
SIRIUS Ui v-0.3.2 [1.21.4~1.21.5 Fabric].jar
20 Apr 2026
SIRIUS Ui v-0.3.2 [1.21.6~1.21.8].jar
20 Apr 2026
SIRIUS Ui v-0.3.2 [26.1 Fabric]
SIRIUS Ui v-0.3.2 [26.1.1 Fabric].jar
18 Apr 2026
SIRIUS Ui v-0.3.2 [1.21.1 Fabric]
SIRIUS Ui v-0.3.2 [1.21.1 Fabric].jar
18 Apr 2026
SIRIUS Ui v-0.3.1.jar
5 Apr 2026
Looking for an older file? The official CurseForge project page is in Resources.