Minecraft Java 1.21 Mods
Browse 21,941 free mods for Minecraft Java 1.21 — popular picks include Tools & Equipments Upgrade, Villagers Drop Eggs, Uuirco's Crystal Optimizer.
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Tools & Equipments Upgrade
Upgrade in smithing table and recycling in blast furnace.
Villagers Drop Eggs
This datapack makes villagers and zombie villagers drop spawn eggs. It's great for transporting those mobs.
Uuirco's Crystal Optimizer
A lightweight Fabric mod that improves End Crystal responsiveness by removing crystal placement delay, instantly hiding broken crystals client-side, and providing configurable crystal spin speed.
More Little Decorations
Adds details in the form of different stones from different materials to each biome. In the future I plan to add more details such as sticks flowers fallen leaves and the like.
TheBrewingProject
Custom beverage crafting, with large customizability on the drinking effects.
SaddleBack
Have you ridden a pig or a strider? Do you need to pick up your saddle? With this datapack you can easily do this!
BettorMC
Stake your world on games of chance

PowerChord
A component-driven RPG instrument system - you know, hunting-horn-likes!
No You Don't
Small Datapack I made for restricting access to the nether and the end!
Create: Always Backtank
makes it always shows air in backtanks
Cleanse The Flesh
A mod created using MCreator so that one can turn rotten flesh into leather.
Vulcan Punishments+
A Vulcan AntiCheat Addon that allows you to have different punishments depending on how many times the player has been punished by Vulcan.
StoneDamager
Stonecutter functionality everyone wants. (Allow stonecutters to hurt entities with or without also hurting players.)
Decree
Adds a variety of helpful commands and gamerules.
Dragon Egg Respawns
Makes the dragon egg respawn every time the Ender Dragon is defeated
HeartLose
Lose hearts on death. Retrieve them with special item
More Aeronautics Void Seas
Makes the Create Aeronautics End Sea spawn in the other two dimensions.

PPG's Runic Weaponry
Epic relic weapons + a combat-oriented magic system!
HungerMine
Every 30 blocks you mine/place, you get hungrier by 1 point.
Instant Death
A simple plugin that lets you kill yourself with /kill without needing any special permissions
TempFly - wFly Free
Lightweight and powerful fly command plugin for Spigot (1.8– 26.2).
Vanish-X
Advanced vanish plugin where players can vanish / invisible and spy on other players with custom chats, effects and many more...
Maximum Protection
Makes all the protection enchantments compatible with each other.
MailBox
A powerful mail system plugin for Minecraft PaperMC servers
Stay Frosty
Cold-related entities may now deal bonus frost damage.
YVtils SMP
SMP - Survival Multi-Player - YVtils-SMP adds many new features to your Survival Server
XGamemode
You're not switching modes, you're switching dimensions.
Avaritia: Nirvana
Avaritia: Nirvana is a Minecraft mod built around the concept of "infinity." Inspired by Avaritia, it offers ultimate-tier equipment, tools, and materials that transcend the limits of vanilla gameplay.
VillagerTradeSettings
Custom Recipes, Manage Specific Recipes, Any Profession & Any Trader [1.17-1.21.4 & Folia]
Seed Tweaks
Add ability to crossbread seeds
Create: AeroStar Northstar Comp
A fixed & expanded fork of the Create Northstar–Aeronautics compatibility mod: travel between planets and build space stations.
BedFallback
If your bed is broken, your spawn point is your previous bed
Itemeditor
This is a powerful Minecraft plugin that allows you to customize items with an GUI system. Edit names, lore, enchantments, and add interactive actions to items - all without typing complex commands.
Mace Protection
Armor enchantment to reduce damage from Mace attacks - Compatible with any type of protection
Awesome Farmer
Utility mod that simplifies farming
Command block in item tab
This mod adds hidden items to a new item tab.