CurseForge · Minecraft mod
UltraLib
This mod is a library mod, which currently adds blocks and one recipe which my multiple of my mods will use.
Quick answer
Which UltraLib release should I use?
UltraLib ultra_lib-1.0.1-neoforge-1.21.1.jar targets 1.21.1 with 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 UltraLib 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 UltraLib ultra_lib-1.0.1-neoforge-1.21.1.jar need?
ultra_lib-1.0.1-neoforge-1.21.1.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 UltraLib without breaking your instance.
Built for UltraLib ultra_lib-1.0.1-neoforge-1.21.1.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use ultra_lib-1.0.1-neoforge-1.21.1.jar. It targets 1.21.1 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
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 ultra_lib-1.0.1-neoforge-1.21.1.jar. It opens that exact file at the source.
About this project
What does UltraLib add?
This is a library mod which so far does not add many library things, besides some blocks and a recipe which many of my mods will use and it is just helpful to use as a dependencies for my mod. You CAN use this for your own mods, but make sure to give me credit.
PERMISSIONS
You CAN use this as a dependency for your own mods, but do make sure to give credit.
Do not redistribute as your own work due to the fact that it is not made by you.
Yes, you can include it in modpacks but like I said previously, make sure to give credit.
What counts as credit? Just say that I made this dependency in the description and if whatever you use it for has credits, include it in there too.
Project description from CurseForge.
Pick your setup
UltraLib by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
UltraLib versions and loaders
ultra_lib-1.0.1-neoforge-1.21.1.jar
14 Nov 2026
ultra_lib-1.0.0.build1-neoforge-1.21.1.jar
27 Oct 2026
Looking for an older file? The official CurseForge project page is in Resources.