
Modrinth · Minecraft mod
UltraLib
Non-intrusive java code library
Quick answer
Which UltraLib release should I use?
UltraLib 1.0.7+1.20.1 targets 1.20.1 with Fabric. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is UltraLib required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does UltraLib 1.0.7+1.20.1 need?
1.0.7+1.20.1. 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 1.0.7+1.20.1. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.0.7+1.20.1. It targets 1.20.1 with Fabric; 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 1.0.7+1.20.1. It opens that exact file at the source.
About this project
What does UltraLib add?
This is my penultimate library mod, meant for easing data-driven development and feature registration. It is non-intrusive (meaning no-mixins and such for broad compatibilty) and is purely a collection of helpful Java classes.
Currently includes:
OptionalObject: A way for parsing optional data from JSONLatchedKeyBinding: Keybindings that only run once per clickSortedList: Sorting a list by weightUltraConfig: Extremely light-weight configSimpleDataLoader,RunnableDataLoader,DetachedRunableDataLoader: Different methods of loading json dataCreator: AFunctionwith registry that allows for turning one object into another by a specified id. Mainly used for data-driven features.Lists: Repackaging of the Apache Commons class because its not included on the client by default
UltraDRY!
- UltraLib now offers some utilities to help keep things DRY.
- Opt-in by adding this to your client init:
UltraLib.registerPackage(this.getClass(), MOD_ID); - Now you can grab multiple things with ease!:
- Mod-specific identifiers with
UltraLib.id(String id); - Mod translations with
UltraLib.getText(String title, String... paths); - You can even get your logger wtih
UltraLib.log();! - More examples here
- Mod-specific identifiers with
Project description from Modrinth.
Pick your setup
UltraLib by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.9
1 loader build1.20.6
1 loader build1.20.5
1 loader build1.20.4
1 loader build1.20.3
1 loader build1.20.2
1 loader build1.20.1
1 loader build1.20
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
UltraLib versions and loaders
1.0.7+1.20.1
ultralib-1.0.7+1.20.1.jar
22 Nov 2025
1.0.5+1.21.9
ultralib-1.0.5+1.21.9.jar
1 Oct 2025
1.0.4.3
ultralib-1.0.4.3.jar
30 Sept 2025
1.0.4.2
ultralib-1.0.4.2.jar
26 Sept 2025
1.0.3
ultralib-1.0.3.jar
13 Sept 2025
Looking for an older file? The official Modrinth project page is in Resources.