Fabric Mods for Minecraft 1.21
Browse 1,482 free Fabric mods for Minecraft 1.21 — popular picks include BorukvaUtils, IBREALISTIC, Pendulum.
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BorukvaUtils
Common library for polymer-based mods
IBREALISTIC
The Unofficial fork of OpenBoatUtils, original by o7moon. This mod added MORE realistic rally aspects for IBREAL or another server
Pendulum
Client side script executor for Minecraft.
MineSchem
MineSchem is a Minecraft Fabric client mod that lets you browse and download schematics from mineschem.xyz directly in-game with login support, clickable buttons, and automatic folder handling.
Controllable Oritech Compatibility
Makes the Controllable mod compatible with Oritech, for instance, the Jetpack.
Gooey Editor
A gui editor and code exporter for fabric.
Boundless API
An extensive API with an emphasis on abilities, effects and combat.
Loot Bags
Valuable loot bags integrated throughout your Minecraft world!
MCEF2
A library for embedding Chromium into the Minecraft.
Phantomwings
This mod/datapack add an early game elytra with lower durability
CoryLib
Unified data storage and synchronization library for Minecraft mods. ⚙️
Fabric Plugin Messaging
A standard library to send and receive plugin messages on a proxied network
Veil Light Utility
A Tool To Save, Load, And Manage Lights Using The Veil Library
Environmental Spells
A biome-based magic system! Collect unique resources from different biomes to craft powerful spell books. Each spell has unique effects - from forest roots to the devastating Warden's scream!
PolyTech
a server-side tech and automation mod for Minecraft 1.21.11, built on the Fabric API using Polymer. It introduces a comprehensive energy network and a suite of machines designed to process resources and automate crafting.
Lanitium
A Carpet extension with useful and advanced features
Vibration Armor
Netherite-tier armor set from the Deep Dark. Take hits to charge energy, then sneak to unleash a shockwave. Two enchantments: Resonance (multi-charge) and Charge (scaling knockback). Craftable with Echo Shards + Netherite. Requires Fabric API + Kotlin.
Polyenergy
A dead-simple energy mod for Fabric.
BBS Addon Engine
The BBS Addon Engine is an essential compatibility layer that allows you to run BBS CML addons directly on the base BBS mod and BBS FS.
Toml Resources
Addon for Simple Resources which adds support for the toml format for both minecraft and custom-registered resources.

No More Messages
A server-side method for disabling all player messages in chat.
Auto Logout
A mod that automatically kicks yourself from server once a player gets in range of blocks that u set, allows u to afk farm and play safe.
Piston Packing
Extended functionality for block creation and collection using pistons.
ai-assistant
Adds an in-game AI assistant that answers your questions using Mistral. Use /ask to chat directly from Minecraft.
I Want To Control My Server (IWTCMS)
Simple minecraft mod, which allows you to connect to your server and control it
Virtual Motion Capture
Gives your Minecraft client the power to send VMC protocol data for vtuber models.
All Items (Server Mod)
Track a groups collective progress for an all items challenge
Tom's Loot
This modpack adds a variety of loot tables and can be used by other mod developers for structure mods and other mods with loot tables as a basis.
LuckyTools - Lucky Drops
This is the Best Mod for each easy Lucky Drops from Mobs and Blocks, Fabric API (Req)
APEL
Apel stands for Animative Particle Engine Library and is used for complex particle animations, all without the need to major in linear algebra. It provides a straightforward interface and rich in documentation for developers.
Packdev Toolkit
A collection of developer tools for building modpacks and datapacks. Pull textures/models out of resource packs, dump lang entries, search datapacks, and copy item IDs: all without leaving the game!
Vereya
python api for minecraft
Mentalitys | Custom Enchants
Custom fabric enchantments for 1.20.1, 1.21.1 & 1.21.11.
BlossomBridge API
A small API for Tywrap Studios Mods, that adds a few minor things.
MCio
Minecraft Input/Output
Coleus
Addon for Lavender that allows guidebooks to be viewed in a web browser