Minecraft Java 1.21 Mods
Browse 3,636 free mods for Minecraft Java 1.21 — popular picks include SurvivalReborn, Solid Entities, Disable aggressive animals for Overly-Realistic.
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SurvivalReborn
Survival Reborn enhances Minecraft survival with dynamic terrain, new biomes, and unique mobs, offering fresh challenges and gameplay mechanics. Explore, craft, and survive in a world full of adventure, ancient secrets, and powerful items!
Solid Entities
Gives most entities solid collision boxes.
Disable aggressive animals for Overly-Realistic
An addon for Overly-Realistic to automatically disable aggressive animals
Modding YOUR Comments V1
20+ features from my modding your comments series, all from the viewer's suggestions!
PetManager
This is a mod that provides a universal pet terminal for managing and teleporting pets, similar to those found in online games.
Simple MobHealthBars
Simple Clean HealthBars for any mob.
NOVIK Horror Mod
Novik is a horror mod that truly instills fear. It also contains some joke content
More Spring to Life
Transform your Minecraft world with brand-new flora, fauna, and mechanics across multiple biomes! This mod breathes fresh life into Birch Forests, Swamps, Badlands, Deserts, and Savannas, introducing new animals, plants, and interactive features.
HellGate
🗸 Mobs will spawn from the portal to hell every 5 minutes, after which the portal to hell will be deactivated.
Custom Mob Spawns (Renewed!)
Simple configurable mob spawning (1.21.5+). Fork of Custom Mob Spawns (which is a fork of Custom Spawns) that supports 1.21.5 and beyond.
PermaEfe Extreme Survival
PermaEfe is a Minecraft datapack that increases the difficulty progressively for 30 days, with mechanics such as permanent death, boosted mobs and unique craftables. Ideal to play with friends and test your survival.
Stellar Depths
Drift through cosmic emptiness. A space exploration mod built around scale, silence, and the unknown.
Happy Ghast but Fast (9x Speed)
This makes the happy ghast faster using Minecraft attributes
Do Not The Snack
Make specified pokemon not be spawnable by poke snacks
PassivePhantoms
A Minecraft Bukkit/Spigot plugin that makes phantoms spawn natrually in the end (no overworld spawn) & are passive until they are attacked by a player.

The Claw Datapack
Extend the range you can place/brake blocks with a new tool! Inspired by the Crab Claw, introduced my Mojang in the 2023 Mob Vote.

Ender Trails
Restores a forgotten feature where endermen leave a trail when they teleport. Also fixes the dragon egg trail being completely wrong.
Configurable Villagers
Server-side mod that puts villager trading, restocking and breeding in a config file. No client install needed.
Nova Quantum
A Fabric 1.21.11 companion mod that adds a voice-controlled AI character to your world. Voice features require your own OpenAI API key.
ReachHUD
ReachHUD is a lightweight client-side mod that displays real-time reach distance when aiming at entities such as players, mobs, and animals.
MISC3LLAN3OUS
A miscellaneous mod that adds miscellaneous things.
Create: Airburst
A Create addon that turns the Extendo Grip into a backtank-powered burst mobility tool.
Heritage of the Gods RPG
This mod provides new PVP features by adding new abilities, new weapons, and new mechanics.
Spicy Stuff Mod
Adding spicy peppers to Minecraft was a brilliant idea with zero consequences (except when you breathe fire on mobs and completely vaporize them). - MOD WILL SOON BE MERGED
SleepAnyway
Allows you to sleep even when monsters are nearby
Adaptive World
Adaptive World is a datapack/mod that makes the game harder the more you stay in one area
LegendaryEvents
This mod adds few event that spawn randomly on your smp!
Water Fix
This mod fixes a longstanding bug (MC-195271), allowing water to render in block_display entities and enderman. It also allows falling blocks to render block entities.
SCP: Genesis
Add SCP's and more to Minecraft
Harmless Slimes
This datapack/mod makes slimes do no damage

Death Collection
Are You Ready to Collect all the death ! Good Luck !
Forgotten.jar
Minecraft horror mod that adds new dimensions and random events
TinyMe
TinyMe. Intelligent Adaptive Companion
MobDisguise
This mod allows you to disguise as every mob!
Villagers Drop Bread
This mod makes villagers drop bread!

Niin's Totem of Alliance
Adds a totem that makes ghasts ignore you when held.