Minecraft version
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Modrinth · Minecraft mod
UnionLib
A library mod for all my mods
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which UnionLib release should I use?
Latest stable file 26.2-13.3-NeoForge
Game version 26.2
Loader NeoForge
UnionLib 26.2-13.3-NeoForge targets 26.2 with NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is UnionLib required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
Client Optional
Dedicated server Optional
Loader for this release NeoForge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
The source marks this as usable on both the client and server.
What else does UnionLib 26.2-13.3-NeoForge need?
26.2-13.3-NeoForge. 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 UnionLib without breaking your instance.
Built for UnionLib 26.2-13.3-NeoForge. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 26.2-13.3-NeoForge. It targets 26.2 with 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
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 26.2-13.3-NeoForge. It opens that exact file at the source.
About this project
What does UnionLib add?
DESCRIPTION
This is an API mod, so it provides nothing for users and is intended for developers to use. This mod only does two things, first is making developing multi-loader mods as simple as possible and the second is a configuration system that's very intuitive to use and lacks complexity. I'm sure that nothing this mod provides hasn't been done before, especially the configuration system. Still, if you want to develop your next mod or integrate your current mod with UnionLib, then you should take a look at this resource. I'm sure it'll prove handy.
SUPPORT
If you want to support me, you can do so by either subscribing on Patreon or buying my game on Epic Games or Itch.io. It's a racing game that I'm sure you'll have fun in if you're into that. If you have, thank you very much. Thanks to you, I'm able to keep this up.
Project description from Modrinth.
Pick your setup
UnionLib by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Minecraft version
1.21.11
3 loader buildsMinecraft version
1.21.10
1 loader buildMinecraft version
1.21.1
4 loader buildsMinecraft version
1.21
4 loader buildsMinecraft version
1.20.6
4 loader buildsMinecraft version
1.20.1
4 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
UnionLib versions and loaders
26.2-13.3-NeoForge
UnionLib-26.2-13.3-NeoForge.jar
6 Sept 2026
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 26.2 · NeoForge setup 26.2NeoForge release
26.2-13.3-Forge
UnionLib-26.2-13.3-Forge.jar
6 Sept 2026
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 26.2 · Forge setup 26.2Forge release
26.2-13.3-Fabric
UnionLib-26.2-13.3-Fabric.jar
6 Sept 2026
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 26.2 · Fabric setup 26.2FabricQuilt release
1.21.1-13.3-NeoForge
UnionLib-1.21.1-13.3-NeoForge.jar
6 Sept 2026
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · NeoForge setup 1.211.21.1NeoForge release
1.21.1-13.3-Forge
UnionLib-1.21.1-13.3-Forge-all.jar
6 Sept 2026
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · Forge setup 1.211.21.1Forge release
1.21.1-13.3-Fabric
UnionLib-1.21.1-13.3-Fabric.jar
6 Sept 2026
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · Fabric setup 1.211.21.1FabricQuilt release
1.20.1-13.3-Forge
UnionLib-1.20.1-13.3-Forge-all.jar
6 Sept 2026
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1ForgeNeoForge release
1.20.1-13.3-Fabric
UnionLib-1.20.1-13.3-Fabric.jar
6 Sept 2026
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 1.20.1 · Fabric setup 1.20.1FabricQuilt release
26.2-13.2-NeoForge
UnionLib-26.2-13.2-NeoForge.jar
5 Sept 2026
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 26.2 · NeoForge setup 26.2NeoForge release
26.2-13.2-Forge
UnionLib-26.2-13.2-Forge.jar
5 Sept 2026
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 26.2 · Forge setup 26.2Forge release
26.2-13.2-Fabric
UnionLib-26.2-13.2-Fabric.jar
5 Sept 2026
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 26.2 · Fabric setup 26.2FabricQuilt release
1.21.1-13.2-NeoForge
UnionLib-1.21.1-13.2-NeoForge.jar
5 Sept 2026
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · NeoForge setup 1.211.21.1NeoForge release
Looking for an older file? The official Modrinth project page is in Resources.
