Data Packs for Minecraft Java
Browse 43 free data packs for Minecraft Java — popular picks include datapack function library, FTQ - optimized, UUID Hex.
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datapack function library
This data pack provides developers with some useful functions and is compatible with all versions of Minecraft (except for those versions where data packs cannot be installed).
FTQ - optimized
-may increase your fps- works on the basis of more stable textures removal of uncessary and other types of optimization

UUID Hex
High-performance library for formatting UUIDs into hexadecimal strings.
PlayerProgress
PlayerProgress is a Minecraft datapack that introduces a leveling system. Earn UP from activities like mining and combat to level up and gain new abilities and rewards.
World Loading Tweaker
Allows you to change the spawn chunk radius of Minecraft, either speeding up loading or improving spawn quality
MC-Reality Mod
this is a mod for Minecraft that seeks to transform the game experience into something closer to real life. It includes elements such as needs management (hunger, health, energy), an economy system, work, and the ability to interact with other player
RandomDirtDrops
RandomDirtDrops is a fun Minecraft data pack that makes breaking dirt blocks drop completely random items from the entire game — from diamonds to dragon eggs! Perfect for chaotic survival challenges and OP item speedruns.
Redstone Additions
Best redstone&tech datapack, Super optimized, 55+ blocks (Block breaker, block placer, filters, conveyors, item pipes, breeder, generators, gates, chunk loader, wireless redstone, multiblocks, jetpacks and so much more ! )
Timekeeper
Super simple vanilla tick profiler for Minecraft datapacks & servers
Customizable Dragon AI
Useful Datapack to customize the Ender Dragon's AI

A* Pathfinding
Minecraft Pathfinder for Entities
More Villages Datapack
Adds more villages to the game.
Advanced Macro Engine
A high-performance scripting and macro execution framework for Minecraft Java Edition datapacks. Provides fiber scheduling, modular APIs, and multi-version overlay support out of the box.
RevertRaidChanges-Pro
Restored Raid to the logic before version 1.21. Allows most professional Raid Farms to function.
Deltatime
Keep track of the real time even on laggy servers (uses the worldborder method)
ReplaceBlock
This datapack provides a powerful API that can replace blocks in the world with high performance in a completely vanilla way after world generation.
ChristCraft
Removes magic and spiritism where possible.
RevertRaidChanges-Extra-BadOmen
allows you to obtain BadOmen after killing raid captain, just like before version 1.21.
Common Signals
Minecraft datapack library aiming to make in common several selectors to improve optimization
Mascom (Mass Commands)
Run any command as often as you like AT ONCE and easier than ever before :)

Fix my Enchantments!
This is a light weight that Fixes one crucial feature that is in every one of Silver's Project that contains custom Enchantments
ISS
This Datapack adds an easy way Save and Load player inventories.
QoL
(1.21.5+), Adds Quality of Life features that everyone needs in their Survival worlds/servers (will also include some of my other datapacks/mods in here)
StringLib
A Minecraft Data Pack library that offers highly optimized implementations for many useful string manipulation utilities.
RevertRaidChanges-Normal
Restored Raid to the logic before version 1.21.
Brightness Adjuster Library
library to auto-adjust display entity brightness
Player Input
Handles polling based input detection, made possible by the type-specific input field on players, provides easy & useful DX for tracking and acting on changes in this data.
More Death Messages
Unique death messages and consistent message ids
LokaLib
Modern, performance-focused Minecraft datapack library with events, timers, utilities, and developer tools.
RevertRaidChanges-Extra-VaultsOminousBottleRemove
Removed the Ominous Bottle from the Vault LootTable.
Realistic Explosion Library
Minecraft Datapack Library for handling realistic explosions in an optimized and general way
Ponder lib
give datapacks the abbility to add ponder pages (like in create mod) to items with the new dialogs in 1.21.6
Robot's Datapack Tools
This datapack library adds multiple tools which make datapack creation easier.
AtomicsLib
This is a library datapack which adds all the annoying things you end up making everytime.
Chest Door Lock
Lock is a lightweight and multiplayer-friendly Minecraft datapack that allows you to easily secure your items and structures.
YAML
A math library specifically designed for speed.