Data Packs for Minecraft Java
Browse 134 free data packs for Minecraft Java — popular picks include Nauticlysm, Holidays & Happenings, Pirate Adventures.
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Nauticlysm
Adding new nautilus mobs with different variants for ocean biomes!
Holidays & Happenings
This data pack seeks to bring the spirit of the holidays to life with special holiday themed events, cosmetics, traders, and items (Only available during the season - get them while you can!).
Pirate Adventures
Pirates is a huge project for the Minecraft game in the form of a DataPack. By installing the required ResourcePack and the DataPack itself, you get a large number of new mobs, items, blocks, mechanics, and bosses.
Dragon Egg Respawns
Makes the dragon egg respawn every time the Ender Dragon is defeated
meerkatx's wolf variant changer
This datapack/mod lets you easily change the variant of your pet wolf.
Copper Golem Hats
Stylize your Copper Golems
Name Tag Mobs To Be Friends
Name Mobs "Friend" to Make them Friendly Towards Players
FNAF Dreams and Nightmares (Work Game)
Mod will recreate the creepy atmosphere of FNaF 4
MiniMobToys
Your Favorite Mobs, as Miniature Toys!
Rideble Dragon Mount
Dragon Mount, new hostile dragon, new end slime. Happy Dragon.
LGs Player Corpses
This lightweight pack adds player corpses on death!
Copyer
The mod and datapack allow you to copy entities or blocks in the form of an item or book with a command to obtain
More Villages Datapack
Adds more villages to the game.
3K Mob Heads! (Decapitation)
3000+ Heads for all Minecraft mobs since 1.14! First to add all 3072 Tropical Fish Heads, with customizable head sounds!
Talking Bubbles!
Talking bubbles is a datapack combined with a resourcepack that makes villagers able to talk to each other!
Christmas Datapack
A Datapack that adds 12 new Christmas features to Minecraft! A Christmas tree and presents, candy canes and roast chicken feasts, and a bunch more cool items!
Varied Mob Sizes
Randomly changes all mobs' size slightly for a more emmersive world!

Xtabay's Villager Creator / Generator
Create custom villagers and edit them easily
Acorn's Tweaks
Many small changes to freshen up survival gameplay, but keep things very vanilla.
meerkatx's cat recolorizer
This datapack/mod lets you easily change the variant of your pet cat.
Armadillo Drops Scute
When you kill an Armadillo, it will drops its scute!
Smarter Villagers
This Minecraft 1.21.1 datapack allows villagers to automatically convert nearby dirt, sand, and gravel into farmlands if a composter is in range, featuring decorative composters with waterlogged slabs for soil hydration.
Halloween Tweaks
Small and minor halloween-related tweaks to make your game spookier!
Multipack: Enhanced Vanilla
Enhanced the vanilla experience with a multitude of features which each improve the game in unique ways
Desolate Pale Garden
A datapack which removes all hostile mob spawns in the Pale Garden except the Creaking, which adds to the ambiance of the biome!
Mobo's Structures
Pirate Ships! Castles! Dungeons! Towers and More! If you're an explorer, this datapack is for YOU!
Frankenstein Zombie
Expands zombies by adding a cemetery structure where a frankestein zombie can be created and leveled up. Additionally 4 new zombie types have been added
Mecânicas Classicas (PT-BR)
Adiciona uma variedade de funções e mecânicas de versões antigas do minecraft!
Snow Golems Everywhere
Prevent snow golems from melting in any biome
Better Happy Ghast Harness
This pack let you customize your Happy Ghats even further by making the harness dyeable, choose from more than 5 million colors the one YOU want !
Uncraftables Datapack
Makes things in Minecraft that are unable to be crafted, craftable

oSzoukaua's: Leaf Litter
A little datapack that makes decaying leaves drop leaf litter or petals on the ground!
Random Name Generator
Generates random names for entities as you name them!
Craftable Nautilus Armour Recipe
A Mod/Datapack that lets you craft Nautilus armour!!! No need to explore anymore to search Nautilus armour.
Tweakable Sulfur Cubes
Enlarge, Shrink and Give Permanent Effects to your Sulfur Cube
Improved Potions
Not the biggest project, the main goal of which is to improve the mechanics of brewing potions in the game. New tools, items, potions, and cauldron brewing.