Minecraft Java 1.21 Mods
Browse 22,200 free mods for Minecraft Java 1.21 — popular picks include Donutils, Schematicon, More Realism (MR).
Step by step: How to install Minecraft Java mods & modpacks
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Donutils
A mod that adds enhancements to your donutsmp.net experience!
Schematicon
A creative planning dimension for builders. Switch from survival to creative and back with fully separate inventories and no balance disruption.
More Realism (MR)
This project helps you experience your world more realistically.
FoChatGames
Automated chat games with rewards, stats, and world controls.
Villager Job Block
This mod allows to see to which block is villager job connected.
Crqzy's Dynamic World Events
Automatically triggers random server-wide events — meteor showers, mob invasions, trader caravans, droughts, and treasure hunts — to keep your SMP fresh and players engaged.
/sitPl
SitPL lets players sit anywhere on the server with a simple /sitpl command using an invisible ArmorStand.
BloodMark
Marks give you permanent effects based on level
Stardust bunny
Adds the stardust bunny origin. Balanced, mobility-focused origin with a huge arsenal of utilities.
Eye of Nemesis
Control what players can do in a given circumstance.
Heavier Horizons
A Fabric Minecraft mod focused on steel, steel armor, and special tools.
Essential Smelting
Adds smelting recipe that mojang either forgot or didn't wanna add
UpOnlyKnockback
Removed downward knockback present in the Java edition Java版に存在する下向きのノックバックを削除
ATNoRocketBoost
Disables rocket boosting for the elytra. This mod is server side only
Amethyst update by toavahi
This little mod adds a few features based on amethyst. Now both mining and using it will become more interesting and profitable for both single-player fans and large servers enjoyers
HeightLimitSpawn
Control mob spawning based on world height.
Sideways & Beyond
This is a building mod that introduces an overhauled placement mechanic for stairs and other blocks in Minecraft.
Macy's End Egg Tweaks
Adds buffs and debuffs to the Ender Dragon egg, used on the umacycrimes SMP.
UltraKits
UltraKits is a modern kit plugin with a built-in in-game GUI creator
Echoes of Infection
A mod that adds zombie infection
SmartLootFilter
Take control of your inventory in Minecraft 1.21.11! Smart Loot Filter lets you choose exactly which items to pick up using a simple menu with categories like Weapons, Armor, Tools, Food, and more. Perfect for servers and singleplayer. Requires Fabric API.
Combat Guard
A lightweight combat tag plugin that punishes players who disconnect during a fight, with stats tracking and full config support.
TartanMsg
msg plugin for velocity and bukkit
Nether Portal Rework
Makes Crying obsidian required to light a portal.
ParticleFX
ParticleFX is a Paper 1.21 plugin that adds customizable particle effects for many player actions.
The Ultimate Mace
Its mod add a new enchant for Mace
DiamondAntiBadWords
Advanced chat moderation plugin that filters configurable bad words, issues warnings, and auto-mutes players with smart detection and 24-hour warn reset.
Anti Player Crasher
AntiPlayerCrasher is a lightweight Fabric client-side mod for Minecraft 1.21.10 that protects your game from malicious crash packets used by PlayerCrasher-style server plugins. It filters invalid position, explosion, and particle packets.
SMPUTILY
Utility SMP Modpack is a clean and lightweight modpack made for better SMP and FPS gameplay. It improves performance, visibility, and quality of life without changing vanilla mechanics.
Vanilla Milk
This is a lightweight modpack enhances the Minecraft experience while retaining the fundamental mechanics and improving immersion and VFX.
Fully Foliage!
Adds over 40 new plants to MINECRAFT, along with three woodsets, and more!
color-scoreboard
A Minecraft plugin that allows players to customize their scoreboard color with simple and gradient effects.
Explosive Barrels
This mod adds immersive and customizable explosives to minecraft!
NutritionZ Plus | Create
A datapack for adding nutritionZ data to Create mod foods!
Calm Bubbles
Disables push/pull effects of vanilla bubble columns. NeoForge 1.21.1.
Toxin Accumulation│毒素堆積
Bogged's arrows now inflict a more deadly poison.│現在沼骸射出的箭矢會造成更致命的劇毒。