Minecraft Java 1.21 Mods
Browse 21,905 free mods for Minecraft Java 1.21 — popular picks include Questforge, Armors Effects Plus, McChatBridge.
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Questforge
A new way to track advancements and adds new ones
Armors Effects Plus
That project adds special effects to diffrent types of armors
McChatBridge
Simple communication for players (and others) on the server via a web interface, with a variety of different features that I found useful.
AutoExecutorMod
Automatically execute multiple commands from text files in a single game tick.
Quick QoL
Adds useful gameplay mechanics while preserving the original vanilla Minecraft experience.
Chorusfix
Chorusfix restores near-vanilla chorus plant behavior on Paper servers where chorus plant updates are disabled for custom-block plugins.
Limbus E.G.O Gift
Bring Limbus Company's E.G.O Gifts into Minecraft — 80+ accessories with unique effects, a gacha draw system, upgrade mechanics, and a resource pack

3LivesAdvanced
A lightweight hardcore like survival plugin that adds a limited lives system able to configured in alot of different ways. By ShuuNaX❤️
DialogAuth
Lightweight minecraft auth plugin with DialogAPI support
Ron's Crafts And Addons
Adds new potion effects and recipes as long as 2 new farming items
Knowledgebound
KnowledgeBound is a server-side RPG skill progression and balancing mod for Minecraft (Fabric 1.21.1). It replaces standard vanilla progression with a time-and-action-based knowledge system.
Ultimate Admin Toolbox
This Modd Adds Admin Toolbox and Troll GUI
SkillBind Bridge
Custom keybind support for MMOCore skill slots using a Fabric client mod and server plugin bridge.
AceSpawners
This Plugin adds configurable spawners to your minecraft server
Avenoxrtp
Modern RTP plugin for Paper/Spigot featuring safe random teleportation, optimized chunk loading, and smooth performance.
Mediamod
This is a Minecraft mod for streamers
VortexSellChests
Automated sell chests with item collection, filtering, upgrades, fuel support, and economy integration along with infinite storage chests
CustomDrops Pro
A plugin that lets you edit the rewards received from monsters. Supports IA IE IT MM and can be easily edited.
Turtles:Willpower
This mod adds a small selection of lantern types (DC) to the game. The power rings are made for mid game level use.

Auto AFK KIck
⏱️ Step away with peace of mind! A smart, stealthy client-side mod that automatically pauses your singleplayer world or safely disconnects you from servers when you go AFK. Features a native vanilla UI and 100% anti-cheat safety.
SlayAlarm
Minecraft Alarm Plugin with Combat Log and Ban Duration
ThreeBody
In Minecraft, a high-freedom sandbox game brimming with endless possibilities, step into that vast and mysterious universe and immerse yourself in a world of The Three-Body Problem, filled with unknowns and dangers!
NaturalBack
NaturalBack - Minecraft Plugin that doesn't let you run /back if died by a player.
The Watching World
A per-player karma score the world reacts to. Kindness (planting, taming, building) earns favor: animals approach, gifts drop, daylight healing. Cruelty earns dread: monsters hunt you and crops grow slower. Server-side, 1.21+ (Paper/Spigot/Bukkit/Purpur).
AquaAdder
AquaAdder is a plugin that can add custom blocks, Items, gui and much more

Really Cooking
Cooking in Minecraft has always been simple, but not anymore!
Charred Remains
Wither Skeletons drop Burnt Bones, a new item that can be crafted into Coal Dust and used as a fuel source. A small but flavourful addition to your survival world.
kʊɹs'd
loot chests spawn procedurally generated bekʊɹs'd items. Cursed in their own wɛɪj.
NoMob-Pigs
NoMob-Pig — Completely removes pigs from your server by preventing spawns and purging existing ones.
SMail
Turn any barrel into a real, in-world mailbox with its own address. Send packages to anyone on the server, manage visitor access, and let mail arrive with sound and particles.
SuperGem
Add a new ore, new capacities, new miniboss
Ballistics
some unconventional ballistics
Grindstone Sharpener
Right-click a grindstone to sharpen your weapons and tools, and get rewarded with damage bonuses based on how fast you click.
Portal Datapack
A datapack that implements simple portal teleportation.
WatchOutYourLife
In this plugin, I have created a brand new level system. It will award a certain maximum health bonus to players based on the amount of damage they have dealt.
Random Effect Challenge
This project creates a Challenge where on every block you step, you get a random potion effect.