Minecraft Java 1.21 Mods
Browse 774 free mods for Minecraft Java 1.21 — popular picks include Ponder lib, Extender, LibraryCube.
Updated daily
Ponder lib
give datapacks the abbility to add ponder pages (like in create mod) to items with the new dialogs in 1.21.6
Extender
Minecraft Command length Extender & Minecraft Custom Function Runner.
LibraryCube
LibraryCube is a Minecraft plugin that generates an infinite, explorable library of unique chambers, each filled with deterministically arranged blocks based on a specific address.
Al's Amazing Advancements
A cool little mod that adds some advancements! Enjoy!
Earwax
EarWaxers is a silly Fabric mod where pressing P on a stick or blaze rod “cleans” your ear and leaves edible earwax on the tip (hurting you in the process, and lighting you on fire if it’s a blaze rod). Cook that wax through burnt, crispy, very crispy, a
Robot's Datapack Tools
This datapack library adds multiple tools which make datapack creation easier.
Infiniframes lib
(datapack template) - Adds method of converting item models to custom placeable, rotatable blocks using item frames
Kit Manager
A Datapack that lets you save your inventory into a kit to then load it later down the line!
Even More Advancements (EMA)
This datapack aims to add many new advancements, challenges and goals to Minecraft. This will be updated frequently, adding more advancements or fixing bugs. Installation: Put the downloaded ZIP into: %appdata%\.minecraft\saves\[yourworld]\datapacks.
1.21 GameRules Restore
1.21 GameRules Restore brings back the original behavior of selected gamerules from version 1.21 that were changed in Minecraft 1.21.11. This allows servers to keep the old mechanics without downgrading the game version.
AtomicsLib
This is a library datapack which adds all the annoying things you end up making everytime.
Adventurers' Guild
This mod adds an adventurer’s guild! You can customize the tasks yourself (even items from other mobs).
Nirvana Datapack
A datapack that is required for the Nirvana Music resource pack.
Pivot Poly
PivotPoly is a powerful Minecraft plugin designed for creators, builders, and server owners who want to bring their builds to life with high-fidelity, smooth-animated mechanical structures.
![[ Craftable Wheat Seeds 1.3.1] Craft The_Uncraftable](https://pub-2ae937f770284535a96c3330f91236aa.r2.dev/thumb/modrinth/144719.webp)
[ Craftable Wheat Seeds 1.3.1] Craft The_Uncraftable
This Minecraft Java Edition Data Pack adds recipes to uncraftable items.
PaperZ
Plug-in for notes!
FurnaceEditor
A collection of powerful in-game editors to manage crafting and smelting recipes effortlessly. Create, edit, and delete recipes via intuitive UIs without ever touching a config file.
Ultimate Step
UltimateStep is an all-in-one Paper server management plugin featuring a powerful rank system, configurable scoreboard, customizable tablist, and complete punishment tools including warn, mute, ban, kick, unmute, and unban. Lightweight, modern, and easy
Sul4urLib
A library data pack/mod.
OpenRouter Chatbot
OpenRouter Chatbot is a powerful and highly configurable Spigot plugin that integrates the OpenRouter AI API into your Minecraft server.
Camera Works
A badly made library of cameras for datapacks :/
ChatManager-Core
ChatManager-Core is a library for working with Minecraft chat
Artificial Enchantments API
centralized singleton enchantment managment api (folia comaptible)
Claude Code: Rate Limited
A Fabric mod for Minecraft 1.21.1 that adds Claude Code enchantments, token limits, rate limiting, item recovery, loot-based enchanted books, achievements, and the Claude Terminal.
Ponder Datapack
Emulate some Ponder mod features in datapack
CobbleFight
A dedicated ELO Battle system for Cobblemon
Acumulated Forms
Adding bedrock form functionality into java using the Cumulus library.
PolaRadio
Turn your server into a 24/7 radio station. PolaRadio streams .nbs note block songs to everyone online on a looping playlist — with per-player mute, personal volume, an in-game song-picker GUI, and full DJ controls.
BetterSlabPlacement
Allows placing full blocks on top of bottom slabs, greatly improves building flexibility. Requires Fabric API.
LiveJava
a VS Code-powered Web IDE that lets you build multi-class, hot-swappable native Java plugins instantly with zero reloads and automatic dependency injection.
Albumize
your screenshots, finally in their right place, easily accessible from the in-game gallery/library
PlayCustomSounds
This project allowed owners to add new disc to their server
PackItems
PackItems is a Spigot 1.21+ plugin that turns YAML-defined custom items into fully routed, action-driven weapons and tools, with automatic resource-pack generation, built-in HTTP hosting, and TextAPI support.
P_TopJogadores
Top Players via placeholders, NPC support, and holograms.
Liquid Lab
A fluid API to streamline the creation of custom fluids and gasses.
HMWBTE's Cosmetics
A datapack that brings custom text displays (and more) into survival!