Fabric Mods for Minecraft Java
Browse 3,190 free Fabric mods for Minecraft Java — popular picks include Shuttle, Easy modpack, Fluid Levels.
Step by step: How to install Minecraft Java mods & modpacks
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Shuttle
A lightweight open-source addon library for adding extension support to your mods
Easy modpack
Tool for easily fixing issues and compatibilities in modpacks.
Fluid Levels
Designed for technical Minecraft players working with fluid mechanics. See water and lava levels directly in-world without the F3 menu. Source blocks show "S", flowing blocks show their level (8 down to 1). Toggle with F7.
Stickman API
A very,very flexible mod with placeholder items for Datapack creators. This mod is required for every project by Lexter.

Slashbridge
serverside utility mod aiming to add in minecraft commands that I think the base game lacks, bridging datapack and mod function.
Yiv's API
Shared API for Yiv’s mods: client events, conditional mixin plugin, and small compat helpers.
farrow
ArrowKt for Fabric (& Quilt)
NBT to Data API
Small library mod for developers, which adds the ability to use the old NBT format, as well as conveniently edit
Munchables
A simple, light-weight, and data-driven API for adjusting eat times in Minecraft!
LunaNPC
LunaNPC is a Fabric-first NPC framework supporting combat, factions, spawning, trading, dialog, and custom models, in-game or through the API.
ZJS
Modern fork of ChatTriggers, enabling live scripting and client modification using JavaScript. Supports 26.1.2-26.2.

HotbarAPI Compatibility
Compatibility patches between HotbarAPI and other mods
LekLai
A simple mod that aim to make skill and class similar to some mmorpg game, core engine
F.Essentials
F.Essentials is a feature-rich mod for Fabric that brings essential server commands and utilities to Minecraft. Designed to make server management and player interaction easier.
Luafy
Adding the Lua Scripting language to datapacks
ActiveEnchantmentsLib
A small lib that allows your enchantments to apply in the player's inventory and provides few utilities
Particle Packs
Add your own custom particles with a resource pack.
World Gen Tweaker
Customize your world's generation!
Config API CJ 26.2 Unofficial Patch
Unofficial Minecraft 26.2 compatibility patch for Config API CJ.
UUID Fixer
Assigns Mojang UUID's to players joining an offline mode server, allowing in-game entities / other services(mods like essential) to use actual UUID instead of hashing player's username.
Armory API
A lightweight, cross-loader API for defining customizable tool and armor sets
Mansion D RPC
Easy to configure to make your Discord Rich Presence better.
YAML Resources
Addon for Simple Resources which adds support for the YAML format for both minecraft and custom-registered resources.
Origins: Framework
Adds the Framework origin, a bot that was made for the sole purpose of helping with construction an providing mobility for engineers on the worksite.
Jsonite
Create custom modded features on Quilt and Fabric using resource/data packs PRE-APLHA server-side untested
Chat Message Library
A StringBuilder for Text, useful for commands and command-line tools.
ArrBrants' Custom Splash Texts
A mod that replaces or extends the yellow splash text on the Minecraft title screen.
Visually Optimized
A collage of vibrant cultures, seasons with the serenity mod, optimisations with sodium and libraries along with inbuilt library to search between and surf through Modrinth from inside Minecraft. Now with a little tweaks in name and other stuff.
Runtime Registry Extender
Empowers mod authors to register things at runtime
Juix Resources (mod version)
Mod enabling Juix datapacks' custom textures

Pentamana Extra
A Pentamana addon providing mana calculation modifying features.
yunfalib
A library that adds config, math, events, modules, and more.
Persistent Storage
Store variables between worlds
Timed Modifiers API
Allows you to add attribute modifiers that expires and gets removed after a specific amount of time.
Colorful Logger Lib
This library is designed to simplify a specific aspect of Minecraft Modding workflows by making it easy to add ANSI color to your Logger calls.
Nobie Link
Just a MOD's Link Provider in description with installed Mods menu Detector.