CurseForge · Minecraft mod
KapLib
Library Mod containing a lot of help for all modding situations
Quick answer
Which KapLib release should I use?
KapLib v1.33.0-mc1.21.1 targets 1.21.1 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 KapLib 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 KapLib v1.33.0-mc1.21.1 need?
v1.33.0-mc1.21.1. 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 KapLib without breaking your instance.
Built for KapLib v1.33.0-mc1.21.1. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use v1.33.0-mc1.21.1. It targets 1.21.1 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 v1.33.0-mc1.21.1. It opens that exact file at the source.
About this project
What does KapLib add?
Main Library Mod for any of my other mods
Adding a lot of custom featurs
including:
* a multi-line GUI textbox with color formatting
* a lot of helper classes reducing efford for networking, serialization, attribute modifiers
* extra attribute modifiers with dynamic amount
* new Rarities including LEGENDARY, MYTHIC and DIVINE
* simple requirement system disabling any usage (dealing damage, blocking, mining...) [data-generated]
* simple fishing hook system, even for other liquids
* simple screen overlay handler with changable screen locations
* more command arguments including Equipmentslots and simple Enums
* simple request system for requestion data from the server
* many wrapper classes reducing efford when creating new enchantments
Project description from CurseForge.
Pick your setup
KapLib by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.20.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
KapLib versions and loaders
v1.33.0-mc1.21.1
kap_lib-v1.33.0-mc1.21.1.jar
21 Sept 2026
v1.32.3-mc1.21.1
kap_lib-v1.32.3-mc1.21.1.jar
12 Aug 2026
v1.32.2-mc1.21.1
kap_lib-v1.32.2-mc1.21.1.jar
3 Aug 2026
v1.32.1-mc1.21.1
kap_lib-v1.32.1-mc1.21.1.jar
30 Jul 2026
v1.32.0-mc1.21.1
kap_lib-v1.32.0-mc1.21.1.jar
28 Jul 2026
v1.31.0-mc1.21.1
kap_lib-v1.31.0-mc1.21.1.jar
15 Feb 2026
v1.30.3-mc1.21.1
kap_lib-v1.30.3-mc1.21.1.jar
23 Oct 2025
v1.30.2-mc1.21.1
kap_lib-v1.30.2-mc1.21.1.jar
21 Oct 2025
v1.30.1-mc1.21.1
kap_lib-v1.30.1-mc1.21.1.jar
20 Oct 2025
v1.30.0-mc1.21.1
kap_lib-v1.30.0-mc1.21.1.jar
20 Oct 2025
v1.29.14-mc1.21.1
kap_lib-v1.29.14-mc1.21.1.jar
18 Oct 2025
v1.29.12-mc1.21.1
kap_lib-v1.29.12-mc1.21.1.jar
17 Oct 2025
Looking for an older file? The official CurseForge project page is in Resources.