Minecraft version
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Modrinth · Minecraft mod
S-Lib
A core utility library providing shared code for Stalemated's mods.
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which S-Lib release should I use?
Latest stable file 2.1.0+1.21.1
Game version 1.21.1
Loader Fabric
S-Lib 2.1.0+1.21.1 targets 1.21.1 with Fabric. It must be installed on the client. Do not install it on the dedicated server. No extra mods listed for this file.
Where it goes
Is S-Lib required on the client, server, or both?
It must be installed on the client. Do not install it on the dedicated server.
Client Required
Dedicated server Not supported
Loader for this release Fabric
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
This file is marked client-only.
What else does S-Lib 2.1.0+1.21.1 need?
2.1.0+1.21.1. 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 S-Lib without breaking your instance.
Built for S-Lib 2.1.0+1.21.1. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 2.1.0+1.21.1. It targets 1.21.1 with Fabric; 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
It must be installed on the client. Do not install it on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 2.1.0+1.21.1. It opens that exact file at the source.
About this project
What does S-Lib add?
S-Lib is a shared library containing common utilities, helpers, and APIs for my mods.
It provides no content by itself and is strictly a dependency required to run my own projects
Feel free to use it in your projects if you feel like it fits your needs.
Project description from Modrinth.
Pick your setup
S-Lib by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Minecraft version
1.20.1
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
S-Lib versions and loaders
2.1.0+1.21.1
s-lib-fabric-2.1.0+1.21.1.jar
29 Aug 2026
Client Required Server Not supported Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · Fabric setup 1.21.1Fabric release
2.1.0+1.21.1
s-lib-neoforge-2.1.0+1.21.1.jar
29 Aug 2026
Client Required Server Not supported Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · NeoForge setup 1.21.1NeoForge release
2.1.0+1.20.1
s-lib-fabric-2.1.0+1.20.1.jar
29 Aug 2026
Client Required Server Not supported Dependencies No extras listed Listed on Release listing
Check the 1.20.1 · Fabric setup 1.20.1Fabric release
2.1.0+1.20.1
s-lib-forge-2.1.0+1.20.1.jar
29 Aug 2026
Client Required Server Not supported Dependencies No extras listed Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
2.0.1+1.21.1
s-lib-fabric-2.0.1+1.21.1.jar
29 Aug 2026
Client Required Server Not supported Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · Fabric setup 1.21.1Fabric release
2.0.1+1.21.1
s-lib-neoforge-2.0.1+1.21.1.jar
29 Aug 2026
Client Required Server Not supported Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · NeoForge setup 1.21.1NeoForge release
2.0.1+1.20.1
s-lib-forge-2.0.1+1.20.1.jar
29 Aug 2026
Client Required Server Not supported Dependencies No extras listed Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
2.0.1+1.20.1
s-lib-fabric-2.0.1+1.20.1.jar
29 Aug 2026
Client Required Server Not supported Dependencies No extras listed Listed on Release listing
Check the 1.20.1 · Fabric setup 1.20.1Fabric release
2.0.0+1.21.1
s-lib-neoforge-2.0.0+1.21.1.jar
25 Aug 2026
Client Required Server Not supported Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · NeoForge setup 1.21.1NeoForge release
2.0.0+1.21.1
s-lib-fabric-2.0.0+1.21.1.jar
25 Aug 2026
Client Required Server Not supported Dependencies No extras listed Listed on Release listing
Check the 1.21.1 · Fabric setup 1.21.1Fabric release
2.0.0+1.20.1
s-lib-fabric-2.0.0+1.20.1.jar
25 Aug 2026
Client Required Server Not supported Dependencies No extras listed Listed on Release listing
Check the 1.20.1 · Fabric setup 1.20.1Fabric release
2.0.0+1.20.1
s-lib-forge-2.0.0+1.20.1.jar
25 Aug 2026
Client Required Server Not supported Dependencies No extras listed Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
Looking for an older file? The official Modrinth project page is in Resources.
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