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Modrinth · Minecraft mod
libnine
overcomplicated library mod
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which libnine release should I use?
Latest stable file 1.2.2
Game version 1.12.2
Loader Forge
libnine 1.2.2 targets 1.12.2 with Forge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is libnine 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 Forge
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 libnine 1.2.2 need?
1.2.2. 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 libnine without breaking your instance.
Built for libnine 1.2.2. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.2.2. It targets 1.12.2 with Forge; 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 1.2.2. It opens that exact file at the source.
About this project
What does libnine add?
libnine is a library that provides a bunch of boilerplate code for content mods to use. It mostly consists of various bits of code that I found useful in more than one project, which I then factored out into a shared library. Particularly notable features include:
- Automatic generation of NBT and byte stream serializers based on annotated fields
- Various prefab capability implementations
- A generic recipe registry system
- "Parametric item models" that can depend on nontrivial item stack state
- A GUI component system and corresponding sync code
- A huge pile of linear algebra nonsense
However, a lot of the code in this project is rather dated and the architecture is a little bit questionable. As such, I would not recommend depending on libnine for new modding projects.
Project description from Modrinth.
Pick your setup
libnine 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
libnine versions and loaders
1.2.2
libnine-1.12.2-1.2.2.jar
20 Jul 2025
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 1.12.2 · Forge setup 1.12.2Forge release
1.2.1
libnine-1.12.2-1.2.1.jar
25 Oct 2023
Client Optional Server Optional Dependencies No extras listed Listed on Release listing
Check the 1.12.2 · Forge setup 1.12.2Forge release
Looking for an older file? The official Modrinth project page is in Resources.
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