
Modrinth · Minecraft mod
JamLib
The platform-agnostic, Architectury based library used in all of JamCoreModding's mods
Quick answer
Which JamLib release should I use?
JamLib 2.3.1+26.1.x targets 26.1, 26.1.1, 26.1.2 with NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is JamLib 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 JamLib 2.3.1+26.1.x need?
2.3.1+26.1.x. 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 JamLib without breaking your instance.
Built for JamLib 2.3.1+26.1.x. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 2.3.1+26.1.x. It targets 26.1, 26.1.1, 26.1.2 with NeoForge; 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 2.3.1+26.1.x. It opens that exact file at the source.
About this project
What does JamLib add?

JamLib provides:
- Platform abstractions
- A JSON5 config API
- A mod repost (9minecraft etc.) checker
Comprehensive documentation can be found here.
Project description from Modrinth.
Pick your setup
JamLib by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
3 loader builds26.1.1
3 loader builds26.1
3 loader builds1.21.11
3 loader builds1.21.10
3 loader builds1.21.9
3 loader builds1.21.8
3 loader builds1.21.7
3 loader builds1.21.6
3 loader builds1.21.5
3 loader builds1.21.4
3 loader buildsShowing the newest 12 of 17 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
JamLib versions and loaders
2.3.1+26.1.x
jamlib-neoforge-2.3.1+26.1.x.jar
17 Jun 2026
2.3.1+26.1.x
jamlib-fabric-2.3.1+26.1.x.jar
17 Jun 2026
2.3.1+26.2.x
jamlib-neoforge-2.3.1+26.2.x.jar
17 Jun 2026
2.3.1+26.2.x
jamlib-fabric-2.3.1+26.2.x.jar
17 Jun 2026
2.3.0+26.2.x
jamlib-neoforge-2.3.0+26.2.x.jar
16 Jun 2026
2.3.0+26.2.x
jamlib-fabric-2.3.0+26.2.x.jar
16 Jun 2026
2.3.0+26.1.x
jamlib-neoforge-2.3.0+26.1.x.jar
10 Jun 2026
2.3.0+26.1.x
jamlib-fabric-2.3.0+26.1.x.jar
10 Jun 2026
2.2.0+26.1.x
jamlib-neoforge-2.2.0+26.1.x.jar
28 May 2026
2.2.0+26.1.x
jamlib-fabric-2.2.0+26.1.x.jar
28 May 2026
1.3.6+1.20.1-patch.1
jamlib-forge-1.3.6+1.20.1-patch.1.jar
27 May 2026
1.3.6+1.20.1-patch.1
jamlib-fabric-1.3.6+1.20.1-patch.1.jar
27 May 2026
Looking for an older file? The official Modrinth project page is in Resources.