Fabric Mods for Minecraft 1.21
Browse 31,852 free Fabric mods for Minecraft 1.21 — popular picks include Warbridle, Chicken boom, Stardust RP.
Step by step: How to install Minecraft Java mods & modpacks
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Warbridle
Turn a tamed horse into a war mount with armor-mounted weapons, a jet saddle that flies, and camp gear for the trail.
Chicken boom
This project adds explosive chickens that leaves MASSIVE CRATERS!
Stardust RP
A modpack for brazilian Minecraft RP server.
Per Boat Settings (PBS)
A mod for Minecraft 1.21.4 that automatically applies a custom settings profile when you ride a boat and restores your original settings when you dismount.
Quaps Attack
The ultimate client modpack for any vanilla server! Get massive FPS boosts, awesome shaders, and useful QoL features completely without requiring any server-side mods.
Inventory Util
Inventory Utility for people that are struggling with inventory organization, made to save hours of work
Blue Tier Tagger
Display player's tiers from Blue Tiers in their nametag and tablist!
Soul Works Mod
This is a mob spawn utility mod.

multiaxisrot
Backports 25w46a multi axis block/item model element rotation to 1.21.1, so resource packs built for newer Minecraft versions.
Octaves of the One
A Fabric tech mod for Minecraft 1.21.4 themed on Walter Russell's two-way universe of rhythmic balanced interchange. Draw Light from the still centre, wind it through the octaves, and spend it across a wired and wireless grid.

Broken Redstone Lamp Mod
This project adds a broken redstone lamp. It adds another redstone lamp that doesn't work and doesn't do anything.
Progression Enchained
This mod completely changes progression in attempt to make progression more difficult but balanced, enjoyable, and most of all non-skippable. It is highly likely to conflict with mods that require things like diamond, iron, gold, netherite, and villagers.
Chat Message Formatter
Prepend and append text to your chat messages based on your current connection.
Compliments
Adds the "/compliment" command which displays a random compliment

Witch Crafting
This mod adds new potion, dimension, functions, trees, wood etc...
GhostHotbar
Hide Your Hotbar, Show It Only When Needed
Gojo Statue Worldgen
Generates a huge Satoru Gojo statue structure in plains-like biomes and oceans, with a loot chest (diamonds, tools, spears, totems-rare, and more)...
Big Armor
Makes dropped armor, swords, and pickaxes appear 2x larger for better visibility.
Show me the delay
Client-side Fabric HUD that tracks and displays your action latency, item-switch delay, and network ping in real time. Perfect for PvP and competitive play to measure mechanical delay and input timing.
Wally's Optimized
One Click, more fps, the best optimization in minecraft.
No Pork
the mod that adds nausea, poison, and weakness effects, and struck lightning and tp to nether when the player eats pork
Nether Converter
A mod that lets you convert dimension coords to the opposite dimension coordinates.
HideHelmet
With this mod you can hide/show your or other helmet.
Player-only Flower Armor
Flower-wreath armor for players only, while non-player entities keep vanilla armor visuals.
lurin's optimizer
a basic optimizer where you have no reason to download it, but try it
Gems Rebuild
This project adds four new gems to your world.
Tank Buster Enchantment
Tired of tanky players? Use this enchantment and no more tanky players!
VoxExporter
Export minecraft to .vox file.
Anti Far Creeper
prevents the creeper from being placed at a range where it cannot be hit
Nexus-Util
This mod features four new features into Minecraft that changes how the game works in many ways like leaving bread crumb trails for cave exploration, pinging feature for multiplayer, scanning feature that makes the player aware of the surroundings, glyphs
Infernal Infinity
A mod which aims to add an unnecessary amount of vanilla feature variants.
Taigrys Utils
A simple utilities mod with various tweaks.
Spell Renderer
A fast, lightweight OpenGL wrapper for Minecraft, designed for rendering 2D objects with a clean, fluent API.
Yearbound
You ever wanted to try out the modpack used in the hit life series "Yearbound", the secondary second of Core Life? Well, you're in luck — here's your chance to do so!
Plain Chat
Strips annoying server chat formatting
TNT Cart Helper
Automatically places rails and TNT minecarts with configurable delays for faster and easier TNT minecart setup.