Minecraft Java 1.21 Mods
Browse 2,243 free mods for Minecraft Java 1.21 — popular picks include 30Timers, Cave Dweller Overhaul, POWERful Crossbows.
Updated daily
30Timers
Random items every x seconds
Cave Dweller Overhaul
Overhauls the Cave Dweller with improved AI, features adapted from the original and Bedrock versions, plus some new additions
POWERful Crossbows
Tired of crossbows being useless? Well now they aren't! With this datapack, Crossbows can be enchanted with both Breach and Power!
Disabilities
Gain a random disability every 10 minutes
JamatoP's Totem TP glitch
JamatoP's Totem teleport glitch from Unstable SMP. Basically when your totem pops, your stasis gets pulled!
Just Red Beds
Revert the "Colour Update" by having just Red Beds!
Stone Equality
All stones can be used like cobblestone in various recipes.
Shearing Sheeps Drop op loot
Shear a sheep → get insane end-game loot. Works on every version from 1.21 to 1.21.10. Adds custom loot table, and turns sheep into walking OP supply crates. Perfect for chaos survival or challenge world

Trolling Mod
This mod adds a Troll Menu that you can have fun on with your friends!
HandsOfTheVoid.jar
Slow burn horror mod heavily inspired by the broken script that will make you feel like you're in an ARG
Herobrine Horror Project
The best Minecraft horror plugin for 1.21.4 Spigot that lets you troll your friends or create a YouTube video with scary ambience sounds and horror effects.
Refined Netherite
Stronger than Netherite. and more
DeathSlot
Locks a random player slot when players take damage, and also has a shared mode where all players share locked slots.
The Mystery
Survive chilling encounters with Herobrine, Entity 303, and Null. Balanced horror gameplay adds eerie tension without breaking vanilla mechanics.
Minecraft Backrooms
One of the better Backrooms mods available.
Big Items API
A really simple library that allows developers to make items take up more inventory slots.
SharedSoul
Experience true cooperative survival where all players share health, hunger, inventory, XP, and death. When one player takes damage, everyone feels it. When one dies, all die together. Perfect for close-knit groups seeking the ultimate teamwork challenge.
Harder Netherite
A mod that adds one just item that will make getting netherite way harder and more annoying
Mini Mobs
Adds new mini variant of mobs that spawn naturally.
Ashore
Switches boat velocity. Boats are now faster on land than in water.
Merged Items
Adds a merging mechanic for items. Items can 'store' other items and will inherit their attribute modifiers.
MakeLag
Ever wanted to feel that one friends lag? Wait no more.
Secret Manhunt!
Players are randomly selected as Secret Hunters (Impostors)! Inspired by zorato's "Secret Hunter" series
Proximity Chat Only
This is going to DISABLE a CHAT in Minecraft
OneHitTree
OneHitTree instantly breaks entire trees with one block hit. This lightweight plugin works across Minecraft 1.13-1.21, featuring configurable options and automatic leaf cleanup for efficient wood gathering.
source³
source-styled physics for the player (adjacent to squake)
Endless City LITE
Turn your world into a vast & endless city, and try to survive this barren landscape. A more performance friendly version.
Rogue Worlds
Transforms the game into a roguelike with many unique upgrades, custom structures and multiple levels
Hydra
A Twitch Integrations mod to bring your chat into Minecraft and more!
Bugrock
💀 Mocking the bugs of the Bedrock edition
tame every mob
Tame every regular Minecraft mob, control their behavior, store them in Mob Pockets, and upgrade them with custom equipment.
BloodMarks
Adds blood effects to your swords and a unique Blood Instinct status, attracting hostile mobs from a distance. Cleanse your weapons in water or face the challenge head-on.
not_alone.jar
This is a horror mod that adds entities to your world
Restful Hellscape
Letting you sleep in the dimensions you're not supposed to.
CustomDisasters
Custom Disasters is a Paper plugin that adds dynamic world events like Blood Moons, Zombie Apocalypses, and Nether Breaches, each transforming gameplay with unique mob behavior and atmospheric world effects.
Protection for Elytra (Now Fixed)
Protection and a few more chestplate enchantments Now Work on elytra