Fabric Mods for Minecraft 1.21
Browse 1,482 free Fabric mods for Minecraft 1.21 — popular picks include Titlecard, EasyHologram API, Katalis.
Updated daily
Titlecard
Heavily configurable mod to customize the minecraft window title!
EasyHologram API
Lightweight server-side hologram library using vanilla Display Entities
Katalis
Contains a set of libraries written by me, packaged into one JAR for easy integration.
Compostable Recipes
Adds a new recipe that adds items to the composter
optimal tweaks
this is a modpack that i personally use, it performs so well on my 10 year old macbook air that i thought it would be nice to share. (it does have some QoL mods like tweakeroo, best if used on creative servers, if people ask ill likely make a non QoL fork)
Craftable.Tridents
It is a mod that helps you to craft tridents

Client Export Helper
A client-side mod that lets you export client-side data including advancements and statistics.
Slothy's Tree
Client-side pack browser, Texture Builder, and OptiFine CIT support. Discloses network use: GitHub Pages catalog/downloads and optional Cloudflare Worker (heartbeats, stars, uploads). See full description for details.
Omnia
A small, yet powerful library for assisting with data generation.
Fatigue's GUI lib
library mod for gui related stuff, very basic
ModernTabs
A standalone, cross-platform library that makes creative mode tabs more customizable
Thread.JS
This is a mod that enables usage of the Javascript programming language and debugger for Fabric mods.
DrownForReal
Drown For Real adds realistic player panic animations when your underwater oxygen bar hits zero. Built for Fabric, it features custom flailing animations that smoothly blend in and out over a fraction of a second using player-animation-lib.

Marmot
A Fabric library to empower customization for server owners.
Aran's Discord Presence
A lightweight, customizable Discord Rich Presence mod for Fabric. Features a built-in settings menu to toggle Server IP, biomes, dimensions, and player heads on your Discord status.
Dialog auth
The mod adds authorization using the dialog system added in 1.21.6!
Luminous Mind
✅ New helmet enchantment ✅ Permanent Night Vision while worn ✅ Balanced survival gameplay ✅ Multiplayer friendly ✅ No potions, no flicker, no hassle
Classy!
A simple class and ability library!
Tianshu Library
A comprehensive local AI library integrating llama.cpp (JJML JNI), sherpa-onnx, and ONNX Runtime to power fully offline LLMs, speech recognition, and text-to-speech directly in-game.

Traveler's Lectern
A lectern that respawns a book after an amount of time.
AdditionalComponentsLib
a library for random item components
PxIgnis
A Lua framework for Minecraft Fabric servers with instant hot reload. Define chat commands, events, and server logic in Lua, no Java/Kotlin required using API made for humans.
Server Info API
A simple server mod that setup an API endpoint for access server info through HTTP
Warp Field HUD
A customizable HUD overlay framework for Fabric. Drag-and-drop positioning, per-element transparency controls, and a built-in compass to start.
DisableEnd de-oωo-ified
A simple way to disable the end with a gamerule, now ported to 1.21.5 and without oωo dependency
Loot Modifier
Add new pools to existing loot tables
EnvironmentDetector (API)
EnvironmentDetector is a lightweight Fabric API that automatically detects launcher, platform, modpack, loader, and environment information through a simple placeholder and developer API system.
Mamtak-Lib
A Minecraft fabric settings UI library
One Block To End All One Blocks
Quest-driven one block survival for Fabric 1.21.4. Break your block, earn drops, complete quests, advance through 6 phases. Multiplayer-ready with team islands and bridge merging. Requires Fabric API.
Mouse Pointer API
API that provides events when pointing/clicking an entity or block with the mouse when an interface is open.
Jake's Economy
A dynamic player-driven economy mod with a live market, coin currency, real-time price trends, and an Auction House.
Craftable Elytra & Shulker [EASY]
Crafting recipe for Elytra and Shulker shell added.
Server Folders
A tiny client side mod, that allows you to organize your server list. :)
SkinsLib
This project adds an in‑game skin library: browse/search skins, preview them, import by username or PNG (drag/drop supported), and apply a selected skin directly to your player.
RzmLib
认真猫系列模组的核心前置库,为其他 Rzm 模组提供支持 / The core dependency for the Rzm (SeriousCat) mod series, providing support for other Rzm mods.
Function Permission Level
A simple mod that changes the function-permission-level to 4 in integrated servers (single player and LAN).