Fabric Mods for Minecraft 1.21
Browse 24,909 free Fabric mods for Minecraft 1.21 — popular picks include Data API, Stacked Blocks: Farmer's Delight, Bedrodium.
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Data API
Tools to aid in datapack creation
Stacked Blocks: Farmer's Delight
A compatibility mod for Stacked Blocks and Farmer's Delight.
Bedrodium
Little optimization bedrock layer
Spellblades and Such: Hexblade
DISCONTINUED - Hexblade Faction Mobs for Spellblades and Such!

Elytra Trims Extensions
Elytra Trims additions for other packs out there
Epic Shaders - All The Shaders
Vanilla themed modpack with lot of shaders (200+) & some quality of life mods (26.1+ Latest)

Health Indicator
Displays players' health below their names.
Nyctography
Adds the Nyctography substitution cipher as a usable Minecraft font.
Giant Swamp Tree
Adds a Giant Swamp Tree to Swamp Biomes.
Cherry Hut
Adds a new Cherry Hut to the Cherry Grove Biome

TSFlareon's Item Core
Datapacks can't add items, so I have to do that separately.
Cobblemon : Simple Pokecenter
Add pokemon centers with healing machine and pc.
CNPC-Gecko-Integration
An addon for Custom NPC and Geckolib3 that allows the use of geckolib models for your NPC
Bad Horse Fix
Fixes horse markings appearing above horse armor when using Iris or Oculus.
Reliable Replacer
A lightweight utility for replacing one block with another, both during worldgen and afterward.
Villager Hats
Craft and wear villager hats.
Cobblemon Effectiveness
Display type effectiveness in Pokemon battles

Island Utils
A client-side utility mod for MCC Island
Stackable127
Stackable is a mod that increases all block stacking limits to any value less than 127 for Minecraft 1.20-1.19.4.

Size Shifting Potions
Adds potions to change your size!
Piggyback
Allow player riding each other and replace the default player sitting mechanic with a piggyback-style ride. Carry your friends on your back for fun, teamwork, or pure chaos!
Cyanide
Reduces data pack world generation pain by providing useful, informative error messages.
More Animals [FORGE] - 1.21 UPDATE!
A vanilla+ modpack ideal for animal lovers!
More Craftings of Runes [More Magic Series]
More way to obtain your favorite Rune!
Toms Storage Star Optimized
Lightweight optimization mod for Tom's Storage.
Abes Hutt's Cobblemon
This is a modified fork of the Cobblemon mod for use in the Cobblemon Academy modpack to better integrate with the rest of it's features.
Not Enough Trinket Slots (NETS)
A Trinket add-on that enables more slots than you'll ever need!
Better Library
This is just a simple lib for config, 1st join message and live message
Legacies and Legends
A complete and highly immersive exploration, loot and lore expansion, with new structures, artifacts and more to discover.

3D Armor
Renders the player and entity equipped armor in 3D and is compatible with most modded armor, dyes, and trims with support for 16x resource packs.
Soul of Cinder Standalone 1.21
Standalone Version of the Soul of Cinder Boss and Abyss Watchers Boss for 1.20.1 and 1.21.0-1.

OverflowParticles
Advanced particles mod for 1.8.9, made with OneConfig.
Better Runtime Resource Pack (BRRP)
A library mod to generated resource at runtime. Based on and made enhancements on ARRP mod.
Epic Knights: Antique Legacy
Adds antique stuff as an addition to Epic Knights mod
Mebahel's Creatures - Draugr Invasion
This mod introduces a full bestiary of Draugrs inspired by Skyrim, a boss with advanced AI, powerful magical items, shared multiplayer chests, new structures, and a raid system that turns the player into the hunted.
EMI++ Forked
A mod adding many small features to EMI!