Fabric Mods for Minecraft 1.21
Browse 6,613 free Fabric mods for Minecraft 1.21 — popular picks include Kind's Anchor Optimizer, Cobblebase, Better Hitboxes.
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Kind's Anchor Optimizer
Smooth & Fast Anchoring Optimized Anchor Explosion, Handled Client Side for the Smoothest and Fastest Anchor Experience
Cobblebase
Palworld-style Pokemon base management for Cobblemon. Job system with unique per-Pokemon skills, abilities, and base mechanics.
Better Hitboxes
A highly customizable hitbox configuration mod.
EvoPlus
Auxiliary mod for PrisonEvo mode of DiamondWorld project, which includes functionality of boss timers, quick menu, hotkeys for rune sets and many more various features.
RPG skill tree
RPG skill tree for pufferfish's skills 8 classes included
Double Hotbar
Adds a second hotbar that displays a row of the inventory on the HUD. This provides a dual hotbar setup where you can easily swap/hotswap/cycle which of the two hotbars is active. Improves inventory management.
Item Components
Change the default components for items! Server-side and data-driven, refreshes on /reload! (and does it properly)
Better Fletching Tables (BFT)
This datapack/mod gives an actual use to the fletching table other than trading with villagers.
Totem Pop Chams
Captures player entity states on totem pops and displays a ghosted version in it's place
Simple Voice Chat Group Names
Adds player names to the group overlay in Simple Voice Chat!
CobbleWeather [Cobblemon Addon]
Adds weather mechanics to Cobblemon where specific weather conditions grant wild Pokémon better IV stats.
Farm 3x3
Harvest 3x3 areas of crops when holding a hoe!
pv-addon-sculk
With this add-on warder and skulk sensors are triggered by proximity voice chat.
No Creeper Grief
Disables that creepers destroy blocks when exploding
NarutoCraft
NarutoCraft is a mod, based on anime Naruto/Boruto

Accurate Spears
Adds the 1.21.11 Spears to 1.21.10!
VeinDigging
VeinMiner for modern MC!
Too Much XP (TME)
Yeets the laggy XP orbs, whilst still maintaining a high level count

Saddle Backport
Backports the new saddle recipe to older versions of the game
Click2Pick
Disables the auto-pickup, manually click the items on the ground to pick em up! Or sneak to pick everything around you!
VexBot
Super smart Minecraft bots For PvP In any gamemode.
Footprint Particles
Adds Footprints to the game!
Glow Squids Actually Glow
Makes glow squids actually glow!
Death Counter
How many times did you die?
Beta Nether 2.0
Reverts the Nether back to its original form!
Carpet crit fix
This mod fixes the problem where fake players don't perform critical hits
Cobblemon - More Sparkles
Adds a few methods of shiny boosting to Cobblemon!
Playerautoma
Record and replay player actions to automate tasks. Also, re-stacks blocks when used up like Inventory tweaks. The mod works on servers but can be regarded as cheating by some.
Pickable Villagers
This mod gives you the ability to pick up Villagers, keep them as Items and place them back where you want.

Origins: Legacy
An unofficial port of Origins 1.20.1 to newer versions of Minecraft
Minecraft but Chunks are Random
Every chunk randomizes into a different block
Trims Overhaul [Limitless]
Grants every trim a unique set of powers, optionally through quests.
Immersive Sounds
This mod adds ambiental sounds to make you feel more IN the game.
Classic Enchanted Golden Apple Crafting
Bring back the classic recipe for Enchantment Golden Apple!
Cobblemon: Fight Them All
Mod which extends Cobblemon to allow Pokemon-style fight with mobs
Enhanced Cats
Extends Minecraft Vanilla cats' features