Data Packs for Minecraft Java
Browse 2,961 free data packs for Minecraft Java — popular picks include Foxxy's Floating Mobs, Entity Obliterator, Trick or Treat Events.
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Foxxy's Floating Mobs
Naming a mob "Dinnerbone" makes them defy the laws of physics and float

Entity Obliterator
A datapack for modpack developers, or server developers to disable certain entity types.
Trick or Treat Events
A pack that adds NPCs that can either give you a treat or a nasty trick...
no AI wand
An wand that turn off AI of mobs
Armstands
armorstands have arms with this command: /function showarms:armorstands and you need to repete this command when you need armorstands arms!
Villager rollback
A datapack that is able roll back villagers that recently died. All of the villagerdata is saved.
Chorus Fruit - Spawn
Changes the behavior of chorus fruit to teleport you to your bed/spawn. Also teleports any mobs attached to your lead!
Creepers Spawn On You Every 10 Seconds
Causes creepers to spawn on all players every ten seconds
Harvest In Peace
Harvest In Peace while the monsters rest in peace! Say good bye to all hostile mobs while being able to get hungry, farm and eat.
Hapyy ghast is also a balloon
Happy Ghast is also a balloon is a fun and lightweight Minecraft datapack that adds a new advancement: just observe a Ghast or a "happy" Ghast through a spyglass to earn it!
Level Up! Unleashed
Multiply XP gained from mobs, smelting, breeding, fishing, and trading! Configurable via chat GUI.
[ICCTN] EchoShard
Adds Echo Shard crafting and a short Deep Dark advancement progression including Recovery Compass crafting and Warden encounters.
The Complete Drop Randomizer, Shuffler & Multiplier
Randomised drops with auto-reshuffle and multiplied quantities. No rare bonus - just chaos and quantity.
Variance
This datapack adds new biome dependent varaints to cows, pigs and chickens along side their vanilla couterparts. It also adds a few nametag easter eggs
Summon-Shaped Recipes
Craft the spawn eggs of the iron golem, snow golem, copper golem, and wither.

W's Rehearted Arboks
Allows Ekans & Arbok (snake_pattern=heart) to spawn naturally.
Sulfur Boots
Makes Sulfur Cubes WEARABLE! Silly little addition. NO RESOURCEPACK.
Swift Mounts
Enhanced equipment and tool for rideable mounts
Wandering Animals
This datapack adds a third mode for cats and dogs that will allow them to wander around a 16 block radius from where they enter "wander mode".
Cobblemon - Blender Default Cube
A mod that adds the Blender Default Cube to Cobblemon

Alex's Mobs fishing
Adds items from "Alex's Mobs" mod to fishing loot tables.
Custom Entity API
A datapack API allowing anyone to add custom entities, or bosses, to Minecraft: Java Edition, powered by Animated Java.
Terralith × ButterBee: Biome Bridge
Terralith × ButterBee: Biome Bridge is an unofficial compatibility data pack that assigns ButterBee animal variants to suitable Terralith biomes.
Unique Happy Ghasts
¡Makes every Happy Ghast more unique!
Apple Bonanza
Multiply apple drops, find rare Golden and God Apples, or trigger spider traps from leaves!
Little Advance Crafting
datapack adds 17 new crafts, making your game easier.
TESTIFICATE Villagers
Brings back Minecraft Old Beta's TESTIFICATE Villagers, recreated by DandiMC.
Kill or die
A recreation of the datapack used in NewKiddo’s “Kill or die” series
Custom Golem Hats
U can use any block as hat on ur Copper Golems! CGH - Custom Golem Hats
Kai's Rats (Datapack)
Datapack + resourcepack that adds in rats... a bit scuffed
Too Many Noises/Mute Entity
Mute any vanilla mob with a single simple command.
Pragmatic Porkers
This datapack modifies pigs to drop bones when killed, at the same frequency with which cows drop leather.
PigGuardians
The death of pigs will be avenged. This mod will spawn piglin brutes when pigs are killed. (Is done with scoreboard interaction detection, wich can interrupt your "pigs killed" in your statistics). This pack is just a little addon to vanilla.
Doner Villager
Adds a Doner and shawarma making villager proffession
Nautlius Tweaks
this datapack tweaks the Nautilus by making them more resistant to trident damage and removing the underwater mining speed penalty
EvilSMP
The datapack that was used to run the server "EvilSMP season 2". Created fully by me and the TGM team.