Minecraft Java 1.21 Mods
Browse 3,590 free mods for Minecraft Java 1.21 — popular picks include ShaderAPI, (ARCHIVED) EnchantedBookLib, VillagersTradingPlus.
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ShaderAPI
Let servers send you shader packs.
(ARCHIVED) EnchantedBookLib
A Fabric and NeoForge library mod which tries to make multiplatform just a bit easier (and mostly for my mods).
VillagersTradingPlus
Add, replace or delete the trades of any villager, change the currency, gate trades behind conditions and reprice them, all from a datapack.
Spell Collector Lib
A lightweight library used in Iron's spells n spellbooks addons to "collect" spells from curios items
OcleLib
Just my mods library
Easy Model Entities
Turn Blockbench models into simple Minecraft entities without writing Java code.
Waystones Plus
This project reworks Waystones UI to make it more user friendly
PantheonAPI
Not a mod that does one thing. It is a shared platform layer that other future Pantheon mods will depend on. Currently 9 mods planned to plug into this.
Qa Villager Extends & Waste Innovations
This mod enriches Minecraft with new villager professions, practical work blocks, optimized resource recycling, Qa rosegold, and more.
Virtual Motion Capture for Minecraft
Gives your Minecraft client the power to send VMC protocol data for vtuber models.
AStages FTB Quests
Adds a bridge between AStages and FTB Quests.
All_Recipes
A few new recipes that are sure to come in handy.
TFC Mantle Mountains
Makes TerraFirmaCraft mountains larger.
Socialismus
Improve communication between your players in a modern way
Quests: Item Rewards
Adds placeholder items for use in Quests — ideal for rewards, tokens, and custom crafting.
Nice Huds
Bossbar Huds for players holding Clocks, Compasses and Recovery Compasses. Also adds a calendar/time based event system including seasons.
Common Storage Lib
A library mod abstracting Capabilities/ApiLookups, Data Attachments, and Item/Fluid/Energy Storage for NeoForge and Fabric
Recorder Ingame
Recorder Mod is a lightweight in-game recorder for Minecraft that lets you record gameplay and game audio directly to MP4 files without needing OBS or other external software.
PuddingAPI
A collection of my shared libraries.
[JET] Just Enough TaCZ
This mod adds config that allows you to remove guns from TaCZ and its addons from the game, without touching zip files.
env.json
A small FabricMC library allowing to convert an `env.json` file into a Java Object. It is mostly used by Environment Driven Assets and Environment Driven Data.

ServiceIO
A Vault drop-in replacement with a new and modern API
MKFACTION
An MMO-like faction system for NPCs
FurWatch
Login and user Management Mod with Additions for Building Blocks in 1.21
Reload World Button
Speed up reloading a world to allow for quicker dynamic registry changes. Client-side & Singleplayer only!
MKNPC
MMO-inspired extension to various aspects of Minecraft NPCs
Dynamic Ore Veins
An API for creating and shaping custom large ore veins with datapacks!
BattleTracker
Standalone Minecraft plugin and BattleArena companion for tracking PvP & PvE stats, featuring leaderboards, combat logging, damage indicators and custom death messages.
Adventure Item Names
Unique names for weapons, tools, armour and items found throughout your world.
Kinecraft Serialization
Library that adding kotlinx serialization support for Minecraft classes
Crafting Essentials (Enchanted Golden Apple Edition)
This mod simply adds a recipe for the enchanted golden apple
PvP Bot Formation Addon
PVP Bot Formation PVP Bot Formation is an addon for PVP Bot v0.0.13A that adds automatic grid formation controls for bot groups.

PerWorlds
A plugin that allows you to store player data per world
Data Config
A mod that gives Minecraft datapacks a visual graphical configuration interface. Datapack authors only need to write simple JSON configurations, and players can adjust datapack parameters directly through the Cloth Config interface in-game, without manuall
RocketPlaceholders
Create custom placeholders for PlaceholderAPI with a lot of custom conditions.
Blueprint (API)
Build & develop infinitely sized structures