CurseForge · Minecraft mod
Knight Lib
A library that serves as a bridge between mods.
Quick answer
Which Knight Lib release matches 1.21?
Knight Lib [FABRIC] Knight Lib 2.0.1-1.21.1 targets 1.21, 1.21.1 with Fabric. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Knight Lib required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Knight Lib [FABRIC] Knight Lib 2.0.1-1.21.1 need?
[FABRIC] Knight Lib 2.0.1-1.21.1 on 1.21. Every mod below is checked against that same setup.
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 Knight Lib without breaking your instance.
Built for Knight Lib [FABRIC] Knight Lib 2.0.1-1.21.1 on 1.21. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use [FABRIC] Knight Lib 2.0.1-1.21.1. It targets 1.21, 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
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside [FABRIC] Knight Lib 2.0.1-1.21.1. It opens that exact file at the source.
About this project
What does Knight Lib add?

KnightLib is a multiloader utility library designed to eliminate code duplication and provide clean implementations of systems that every mod tends to reinvent from scratch.
*● This library is fully compatible with Forge, NeoForge (1.21.1+), and Fabric, built on Jared's multiloader template.
● This mod includes a small amount of content that is disabled by default. Any mod wishing to use the content (items, blocks, icons, etc.) must first enable it in its implementation.*
For any questions, problems, contributions, new ideas about content/mods, and more, you can join our official Discord and comment in the appropriate channels.
What's included
Networking
Per mod S2C/C2S packet channels with a simple send/receive API
Auto Config
TOML config with auto generated ingame GUI, hotreload, and Configured/ModMenu (fabric) compatiblity
Event Bus
A common event system that abstracts calls to their respective loaders, so that everything can be managed in common package.
Automaton AI
Finite state machine system for complex entity AI behavior.
OBB Hitboxes
Oriented Bounding Boxes (OBBs) linked to individual model bones, to manage hitboxes more dynamically.
Camera Shake
API to manage camera shake for specific players, with several levels of configuration.
Custom Boss Bars
Allows to specify and configure custom boss bars (in real time) for the entities you want.
Cutscenes
In-game cutscene editor that automatically exports the desired JAVA code to use it wherever you want (only available in dev mode).
Music Provider
Loops and configures music tracks for entities under custom conditions, such as boss music handling.
Post Shaders
Utilities for post-processing shaders, including multi-target (experimental) passes.
Animation & Rendering
Includes an animation and rendering engine, with support for easings, molang and the bedrock (geo/geckolib) format, among other things, working as an extension of the vanilla pipeline.
Biome Spawns
Easy to use API for registering entity spawns per biome.
Loot Tables
Helpers for modifying loot tables in general (entities, chests, etc.).
Persistent Sounds
Looping sounds tied to entities, items and blocks, without worrying about overlapping sounds.
Entity Data
API for quickly accessing the persistent data of an entity.
Attachments
API for attaching (hence the name) persistent data to any entity, where the information is synched automatically (S2C).
Registrar System
Enhanced common registration helpers for blocks, items, entities, features, etc.
Extra Utilities
Additional utilities for math, colors, easings, etc.
For Developers
See the installation instructions on the project wiki on GitHub.
To report bugs or suggest features, or ask any questions in general, join our Discord server or report them via issues!
Project description from CurseForge.
Pick your setup
Knight Lib by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21
3 loader builds1.20.1
2 loader builds1.20
2 loader builds1.19.2
1 loader build1.19.1
1 loader build1.19
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Knight Lib versions and loaders
[FABRIC] Knight Lib 2.0.1-1.21.1
knightlib-fabric-1.21.1-2.0.1.jar
11 Sept 2026
[NEOFORGE] Knight Lib 2.0.1-1.21.1
knightlib-neoforge-1.21.1-2.0.1.jar
11 Sept 2026
[NEOFORGE] Knight Lib 2.0.0-1.21.1
knightlib-neoforge-1.21.1-2.0.0.jar
11 Sept 2026
[FABRIC] Knight Lib 2.0.0-1.21.1
knightlib-fabric-1.21.1-2.0.0.jar
11 Sept 2026
[NEOFORGE] Knight Lib 1.6.2-1.21.1
knightlib-neoforge-1.21.1-1.6.2.jar
10 Sept 2026
[FABRIC] Knight Lib 1.6.2-1.21.1
knightlib-fabric-1.21.1-1.6.2.jar
10 Sept 2026
[NEOFORGE] Knight Lib 1.6.1-1.21.1
knightlib-neoforge-1.21.1-1.6.1.jar
9 Jul 2026
[FABRIC] Knight Lib 1.6.1-1.21.1
knightlib-fabric-1.21.1-1.6.1.jar
9 Jul 2026
[NEOFORGE] Knight Lib 1.6.0-1.21.1
knightlib-neoforge-1.21.1-1.6.0.jar
9 Jul 2026
[FABRIC] Knight Lib 1.6.0-1.21.1
knightlib-fabric-1.21.1-1.6.0.jar
9 Jul 2026
[NEOFORGE] Knight Lib 1.5.5-1.21.1
knightlib-neoforge-1.21.1-1.5.5.jar
4 Jul 2026
[FABRIC] Knight Lib 1.5.5-1.21.1
knightlib-fabric-1.21.1-1.5.5.jar
4 Jul 2026
Looking for an older file? The official CurseForge project page is in Resources.

