- Loaders
- FabricNeoForgeForgeQuilt
- Downloads on Modrinth
- 15.4M
- Followers on Modrinth
- 952
- versions
- 175
- Updated
- September 18, 2026Sep 18
- Published
- in 2022
At a glance
A library: other mods need it — required by 14 mods
Runs on Fabric, NeoForge, Forge and Quilt
For Minecraft 1.20.4, 1.20.6–26.3 …
Needed in the game and on the server
Latest version — 2.3.1+26.3.x from September 18, 2026
License MIT — free
Where it's neededGame versions1.18–1.20.2, 1.20.4, 1.20.6–26.3
In gamerequiredOn serverrequired
Needed both in the game and on the server

JamLib provides:
- Platform abstractions
- A JSON5 config API
- A mod repost (9minecraft etc.) checker
Comprehensive documentation can be found here.
FAQ
How to install JamLib?
Install Fabric for your Minecraft version, download JamLib 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 JamLib support?
JamLib has builds for Minecraft 1.18–1.20.2, 1.20.4, 1.20.6–26.3.
Is JamLib needed on the server?
Needed in the game and on the server
License and source
MIT Licensefree to use and share with credit to the author