Minecraft Java 1.21 Mods
Browse 126,555 free mods for Minecraft Java 1.21 — popular picks include Potion Effect Icon, Chaos Engine, More Flowers.
Step by step: How to install Minecraft Java mods & modpacks
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Potion Effect Icon
Make the potion icon the icon of effect
Chaos Engine
Chaos Engine adds events to the server (UFO, meteorite, glitch events, and others), custom enchantments, and careers. The plugin also includes a weapon system, cases, a casino, and much more!
More Flowers
Add more flowers, they can decorate your home.
Removed Items Revived
adds many of the blocks and items that were removed or were planed to be added
Nephrylis
A custom GUI resource pack featuring dark semitransparent UI with rounded corners, beautiful yet minimalistic enough buttons with violet accent
PicoLimboBridge
PicoLimboBridge is a management plugin for PicoLimbo
Changelog Book Freemium
Custom book GUI plugin for paper which reward's your players for reading live changes on your server
simplequalityoflife
a simple quality of life mod to accumulate some customizable features in one projekt.
No Spear Minimum Reach
This mod/datapack adds a way to remove the minecraft spears minimum reach, along with some other benefits as well, such as a counter for baby zombies, silverfish, and endermites. (Cover is not part of the pack)
Alternate Effect Icons
Changes some effect icons to my personal preference, such as giving absorption a unique icon.
Boat Item Frame Fix
Fix for MC154651: boats break item frames. Not cool.
Dreadful Undead
Makes zombies and zombie horses more creepy
SimpleChunks
An easy-to-use chunkloader with a modern GUI, teleport system, and secure permission management — ideal for farms, redstone, and automated systems.
Consistent Hearts
Changes all the heart textures to be consistent with the normal hearts!
Dumbelled
Replaces the mace with a dumbell!
SteamHappy Totem
Changes the Totem of Undying into a steamhappy emoji (+ yippee sound)
SMP Necessities
This modpack adds all the mods you could possibly need to start playing on an smp.
Enhanced Crops X Rain Growth
This plugin enhances your farming experience with useful features such as a rain boost that accelerates the growth of your plants.
LagAttack
A lightweight vanilla improving modpack for the newest version of minecraft. You can use this modpack to play on the "LagAttack" Server
custom-crafter
custom-crafter provides very customizable recipe's API.
Recovery Compass on Death/Respawn
A datapack where when you respawn, you are given a recovery compass which helps you find where you last died easier. 1.21-1.21.10
Abyssal Nail
A custom Nail design inspired by Hollow Knight, with an Abyssal Twist. - Made by AltiusGames
ParticleGrenades
Custom, Configurable, Craftable Grenades With Realistic Physics and Particles!
The Quarry Essentials
A lightweight modpack based on Simply Optimized, built for smooth performance and stability. It includes only the essentials needed for The Quarry - optimizations, basic quality-of-life, and nothing that changes survival gameplay.
TwitchRandomizer
a minecraft randomizer challenge controlled by your twitch chat
sausage compass
compass but a spinning sausage by mon0mo
DailyEvent
Minecraft plugin with randomized daily event
ResourcepackPlus
Minecraft plugin that semi-automatically updates the server’s resource pack (GitHub for source, Dropbox for hosting).
mdt
This is a pure-client mod which adds several features that may be useful.
Shift Click Decorated Pots
A simple mod that lets you shift click a decorated pot to put all the items in your hand in it

MCFMR Better Remote
A Better Remote for MrCrayfish's Furniture Mod Refurbished
SharedSoul - True Cooperative Survival Experience
survival, cooperative, shared, health, inventory, xp ,hardcore, teamwork, multiplayer
Perfectly Fast
Only mods made to boost your performance
Meteorolocracy
Players can vote to change the weather.
EmojiType
A plugin to auto-replace emoji codes with unicode symbols server-side.
Gizmo Renewed | Customizable Welcome Screens!
A Bukkit/Paper plugin to create unique and custom screens to display to players