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Minecraft Java 1.21 Mods

Browse 3,577 free mods for Minecraft Java 1.21 — popular picks include Ritchie's Projectile Library, L2 Library, Jupiter.

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Ritchie's Projectile Library
1.21.1neoforge

Ritchie's Projectile Library

A Minecraft modding library for better projectiles.

11Mdownloads
L2 Library
1.21.1neoforge

L2 Library

Library for LightLand mods

11Mdownloads
Jupiter
1.21.9fabric

Jupiter

A powerful, auto sync config library.

11Mdownloads
Sophisticated Core (Unofficial Fabric port)
1.21.1fabric

Sophisticated Core (Unofficial Fabric port)

The Unofficial Fabric version of the Sophisticated Core Library

11Mdownloads
Areas
1.21fabric

Areas

✍️ Create custom named regions/towns/zones with a radius using signs, with join/leave messages via GUI.

10Mdownloads
Radical Cobblemon Trainers API
1.21.1fabric

Radical Cobblemon Trainers API

Trainer management and battle API for Cobblemon.

10Mdownloads
Vivecraft
1.21.11neoforge

Vivecraft

A Minecraft VR mod on a loader of your choice!

10Mdownloads
EMIffect (Status Effects EMI Plugin)
1.20.1fabric

EMIffect (Status Effects EMI Plugin)

EMI addon that appends status effects in EMI and provides information about each status effect.

10Mdownloads
TheDragonLib
1.21neoforge

TheDragonLib

A library for most of sokratis12GR's Mods

10.0Mdownloads
Library Ferret - Fabric
1.21.11fabric

Library Ferret - Fabric

Shared lib for the mods of jtorleon-studios-team

9.9Mdownloads
Chunk Activity Tracker
1.21.1fabric

Chunk Activity Tracker

Library mod that stores a heatmap of player activity in chunks

9.9Mdownloads
Summoning Rituals
1.21.1neoforge

Summoning Rituals

Create custom summoning rituals for items, mobs and commands.

9.8Mdownloads
Idwtialsimmoedm
1.21.8fabric

Idwtialsimmoedm

I didn't want to install a library so I made my own Enchantment Descriptions mod

9.7Mdownloads
Iron's Lib
1.21.1neoforge

Iron's Lib

Provides common functionality and content for Iron's mods

9.5Mdownloads
Pehkui
1.21neoforge

Pehkui

Lets you change the size of most entities, shrinking their scale smaller or growing them larger

9.5Mdownloads
PAUCAL
1.20.1forge

PAUCAL

Petrak@'s Assorted, Useful Collection of Assistance Library.

9.4Mdownloads
Does It Tick?
1.21.1fabric

Does It Tick?

Minecraft's dumbest server performance mod.

9.3Mdownloads
AddonsLib
1.21.6forge

AddonsLib

A library to facilitate registration between mods, in particular macaw's bridges/roofs/fences/etc...

9.2Mdownloads
RyoamicLights
1.21neoforge

RyoamicLights

LambDynamicLights unofficial architectury port. A dynamic lights mod for minecraft.

8.9Mdownloads
Underlay
1.21.1neoforge

Underlay

Place any block (such as carpets) inside anything!

8.8Mdownloads
Quests Lang Splitter
1.21.1neoforge

Quests Lang Splitter

This mod adds a feature to split lang files for better version control, also adds some utility commands.

8.5Mdownloads
Kube Utils
1.21.1neoforge

Kube Utils

Adds helper utilities and new features to KubeJS in a clean, concise and consistent API design

8.4Mdownloads
LDLib
1.21neoforge

LDLib

A libarary for rendering, gui, basic stuff, etc

8.4Mdownloads
EMI Loot
1.21fabric

EMI Loot

A loot drop (chest, block, entity) plugin for the EMI Recipe and Item viewer.

8.4Mdownloads
Uranus
1.21.1neoforge

Uranus

A Library contains animation engine, object helper and so on. Partly based on LLibrary and Citadel.

8.4Mdownloads
Iris/Oculus Shader Folder
1.17.1fabric

Iris/Oculus Shader Folder

A mod to hide, recolor, add tooltips, and reorder shaderpacks in the Iris/Oculus shaders menu using flexible patterns. THIS IS NOT A SHADER LOADER

8.3Mdownloads
Kleiders Custom Renderer API
1.20.1forge

Kleiders Custom Renderer API

Change the player/mobs models and textures with this API for MCreator mods!

8.3Mdownloads
CC:C Bridge
1.21.1neoforge

CC:C Bridge

Adds compatibility between CC: Tweaked and Create through more peripherals!

8.2Mdownloads
CarrasconLib
1.20.1neoforge

CarrasconLib

A library for ECarrascon Mods

8.2Mdownloads
Iris/Oculus & GeckoLib Compat
1.18.2forge

Iris/Oculus & GeckoLib Compat

Fixes GeckoLib animations not working if using a shaderpack with entity shadows.

8.1Mdownloads
Satako library
1.21.1neoforge

Satako library

Library for modding

7.9Mdownloads
Tooltip Overhaul
1.20.1forge

Tooltip Overhaul

Every tooltip, more modern, sharper, cleaner.

7.9Mdownloads
FDLib
1.20.1forge

FDLib

Collection of utilities for my mods

7.8Mdownloads
KubeJS EnderIO
1.21.1neoforge

KubeJS EnderIO

KubeJS integration for EnderIO.

7.8Mdownloads
WATERMeDIA: Multimedia API
1.18.2fabric

WATERMeDIA: Multimedia API

Library with an API using VLC for multimedia integration with Minecraft

7.8Mdownloads
Knight Lib
1.21neoforge

Knight Lib

A library that serves as a bridge between mods.

7.6Mdownloads