Data Packs for Minecraft Java
Browse 2,961 free data packs for Minecraft Java — popular picks include Epic_Fight_X_Rpg_Tag, Cat Amulets, Craftable Mob Heads.
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Epic_Fight_X_Rpg_Tag
The project is an epic fight animation of the RPGApocalypticEvolution weapons and mobs
Cat Amulets
Adds an amulet which you can give to cats, which will give you an extra heart for every cat with an amulet around you, and also more amulets to extend the powers
Craftable Mob Heads
A datapack that allows you to craft mob heads
Cobblemon Mirian Fakemon Pack
An addon for cobblemon that adds fakemon that are featured in mirian region. (HEAVY WIP)
Biome's o' Plenty Flesh to Meat
A quick datapack that allows using create crushing/milling to grind up BOP flesh into various raw meats from vanilla, Alex's Mobs, Alex's Delights, and Farmer's Delight
Bramble Henge
A parkour-based hostile mob in the Blaze & Breeze family
Turn Into Baby
A simple datapack that lets you turn eligible mobs into babies.
Mighty Steeds
Horses are under-appreciated by Mojang, lets give them some love!
Pathway
Library in aid of controlling entities

Death Collection
Are You Ready to Collect all the death ! Good Luck !
Rabbit Season
Adds rabbits to some additional biomes to make finding them easier and changes the bundle recipe back to using rabbit hide.
Mob Drop Recipes
Adds recipes for bones and gunpowder for worlds which have mob spawning disabled.
fortnite klombo [cobblemon]
the datapack add the klombo to cobblemon
Local Flavors - A Matcha Flavoured Addon
Local Flavors is an add-on for Matcha Flavor that adds an alternate way to gather Obols while also giving the Villagers more personaility.
Frogslime
Small whimsical improvements of frogs to make them more fun!
Strengthening Golems│強化傀儡
You can repair snow golems using snowballs, just like you can repair iron golems.│你可以用雪球修復雪傀儡,就像修復鐵傀儡一樣。
Renewable Echo Shards│可再生回聲碎片
Bats will drop Echo Shards after being killed by the Warden.│蝙蝠被伏守者擊殺會掉落回聲碎片。
Cryptic Creatures
Are you a fan of spooky things? If so, then this datapack is for you! It adds in all the classic spooks to your Minecraft world. Great haunts, such as Herobrine, Entity 303, and Null! I hope you guys enjoy the pack :D

Player Healing│玩家治癒
A new function has been added that can heal players based on the input healing amount.│新增了一個函數,可以根據輸入的治療量為玩家治療。
Randomized Villager Names
A data pack that gives random names and titles to all villagers you trade with totaling over 3000 combinations.
Bieluuu's hard dungeons
This datapack adds late-game surface-accessible dungeons with unique layouts, tough mobs, and valuable loot.
Happy Ghast but Fast (8x Speed)
This makes the happy ghast faster using Minecraft attributes
Caveat
Expanded entity behavior
Instant Piglin Bartering!
Since 1.17, Instant Barter removes Piglins' bartering timers for faster trades!
Increased Mob Spawn Amount
Increases the amount of spawned mobs
Animals Fury
Turns all passive mobs against you, making even a walk at daytime dangerous
Armagun
A datapack that adds the Armadillo themed things

Peaceful Gathering
makes mob drops more reliable in peaceful mode
Speedy Flying Mobs
Makes speed/slowness potions work on Happy Ghasts and other flying mobs.
The virus
A virus will appear in your world. First it will infect the mobs, and then the mobs will infect you. It will develop, there will be disadvantages and there will be advantages.
HeightBoxLib
Hitbox related Library that gets the entity's height!
Mobs Ability Enhancement│生物能力增強
Enhanced the mobs' ability to pick up equipment and break doors.│強化了生物撿取裝備以及破門的能力。
Monee
A simple multiplayer mod/datapack that adds simple currency to any server. This can be used as base of an economy
Spider Spits Web│蜘蛛吐絲
Spiders can spits webs to trap their targets.│蜘蛛可以吐絲來困住目標。
Penguh's Snowball on a Stick
Happy ghast zoomies
MC Earth Pigs
A Minecraft Data-Pack & Resource-Pack for 1.21.5 that adds 6 pig variants from Minecraft Earth