- Loaders
- FabricNeoForge
- Downloads on Modrinth
- 17.6M
- Followers on Modrinth
- 680
- versions
- 148
- Updated
- September 21, 2026Sep 21
- Published
- in 2021
At a glance
Works both in the game and on the server — install where you need it
LibJF is a library for my smaller mods which contains several common components. Namely it provides:
- a complete config system with UIs, commands, compile-time codegen, presets, verifiers, etc
- a framework for manipulating loaded data and resources
two new tags (which you can also use in data packs):
libjf:overpowered: if an entity only wears armor items with this tag, it will become invulnerablelibjf:shulker_boxes_illegal: items with this tag cannot be placed inside shulker boxes. Intended to be used for backpacks or similar items
- utility code for serialization, script loading, co-processes, IO, etc.
- network utilities including a HTTP client and server
- a configurable and extensible translation system supporting various providers
- utilities for early initialization and ASM patching
If a mod is made by me, it is generally safe to assume it requires LibJF (or ships with parts of it)
If you want to use LibJF yourself, you can find documentation here
FAQ
How to install LibJF?
Install Fabric for your Minecraft version, download LibJF for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does LibJF support?
LibJF has builds for Minecraft 1.16.5–26.3.
Is LibJF needed on the server?
Works on either side — install it in the game, on the server, or both