About Lib 39
From ModrinthLib39 is a general-purpose dependency library for Minecraft mods.
A LIB
Current Library Features
- S2C Synchronized Data System (Not only supports Capability but also enables synchronization of more data types through DataProvider)
- I18n Language JSON Data Generation Code based on Provider (providing more convenient language data generation)
- Compatibility Code Registration Management Class (for easier compatibility with other mods)
- NBT Read/Write Utility Class using a chain pattern to reduce redundant serialization/deserialization logic
- A Series of Riding Methods for more convenient management of riding relationships
...and a range of other utility methods aimed at reducing repetitive coding tasks.
For Developers
Add the Maven repository in your build.gradle:
repositories {
maven {
name = "LTD Maven"
url = "https://nexus.bot.leisuretimedock.top/repository/maven-public/"
}
}
Import the dependency:
implementation 'top.r3944realms.lib39:lib39:${version}'
Version examples like 1.20.1-0.0.17:
implementation 'top.r3944realms.lib39:lib39:1.20.1-0.0.17'
After building, this mod can be found in the library with examples included.
Click "Download Source Code" in the right-hand window to view JavaDoc annotations.
Highlights
From source dataGame versions
Supports 3 Minecraft versions, the newest being 1.21.11.
Loaders
Runs on Fabric, Forge and NeoForge.
Footprint
Rated a light load on a server.
What kind of mod it is
From the catalogLibraries & compatibility
Foundations and fixes other mods build on. Usually installed because something else needs it.
Runs on your server
From source side supportModrinth lists Lib 39 as required on the server. Check its Modrinth page to see whether players need it too.
Compatibility
- Game
- Minecraft
- Loaders
- FabricForgeNeoForge
- Runs on
- Serverrequired on the server
- Game versions
- 1.21.11 and 2 earlier
Verified at the source
- ✓ModrinthOfficial listing, checked 2026-10-01Open ↗
- ✓Author3944Realms, as published on Modrinth
- ✓LicenseMITFree









