Minecraft Java 1.21 Mods
Browse 3,587 free mods for Minecraft Java 1.21 — popular picks include ChatManager-Core, Custom PVP Crafting Recipes, BetterSlabPlacement.
Updated daily
ChatManager-Core
ChatManager-Core is a library for working with Minecraft chat
Custom PVP Crafting Recipes
This datapack adds 4 new crafting recipes for your favorite PVP items. 1 is brand new, 1 is returning, and 2 are the original recipe but cheaper.
BetterSlabPlacement
Allows placing full blocks on top of bottom slabs, greatly improves building flexibility. Requires Fabric API.
iammojogo's Uncrafting Mod
This mod is a mod that allows users to uncraft crafted items to gain back resources from items they don't need and don't want to throw away or burn.
Speakeasy Utilities
A shared library providing common systems, utilities, and APIs for the Speakeasy mod collection.
iCor's SMP Core
Professional Minecraft Paper 1.21.x SMP Core Plugin with modular architecture, MySQL support, player data system, async saving, command framework, API layer and scalable backend systems.
Config Hub
USH-Universal Config Hub is a web dashboard for editing all Paper plugin configs. It validates changes, shows reload requirements (hot, plugin reload, or server restart), and safely migrates old versions with backups.
Idle_Essentials
Just visual beautiful and mechanical comfortable essentials plugin like All in One
BoostSync
Reward your Discord Nitro boosters in Minecraft with automated, verified rewards. BoostSync links accounts with a one-time code, grants a renewing 7-day booster rank while they keep boosting, and offers once-per-season reward claims.
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.
Fools Rise Tweaks
Small mod for Fools Rise modpack! Added progression for modpack and some more!
BluCooldown
Minecraft Paper/Folia plugin for adding fully configurable cooldowns to items
World Persistence
A fabric mod that adds more immersion to the static minecraft world.
HttpChat Python chat, Linux chat
A mod that adds the ability to send messages or commands to the chat on behalf of the player directly from any programming language or console.
ZelLib
a Libbery for Zel plugins made by Macronis
NextLib
Build Minecraft Plugins The Easy Way
JakeLib
JakeLib is a small Fabric helper library for Minecraft mods, offering reusable utilities for inventories, item stacks, text, colors, timers, cooldowns, math, strings, and shape template data. It includes a /jakelib command to confirm the mod is loaded.
MaxProtections
The best protection plugin with menu +
TerraLib
Library for the mod "seasons" made by Elias
CompatGuard
Intelligent plugin compatibility auditor & update manager. Auto-detects outdated plugins, estimates risk, and supports one-click in-game updates.
NxRestrict
NxRestrict is a powerful GUI-based Minecraft plugin that lets you easily enable or disable gameplay features globally or per player. It provides real-time control with no restarts, using a clean interface and instant enforcement.
AGF-Economy | Modern Economy System with Vault & PAPI (1.21)
Fast, modular and scalable economy system with Vault & PlaceholderAPI support
Simple Spawn Egg Recipe
Designed to expand survival progression by making every spawn egg obtainable through crafting rather than relying on creative mode or commands.
Arox2080's camera api
a thing for a mod that adds a command for a camera shake effect
DPNPC
Customizable NPCs using Minecraft's mannequin entity.
Acoustic Lib
Server-driven audio playback for NeoForge mods!
VConomy
A modern, lightweight, multi-currency economy plugin for Minecraft
NxFreeze
NxFreeze is a lightweight staff plugin that allows admins to freeze/unfreeze players using commands or an easy GUI.
TOU
Now you can craft Totem of Undying.
Ultimate Custom Gear
Ultimate Custom Gear lets server owners and modpack creators add fully custom content to Minecraft through simple JSON files. No coding required, hot-reloadable, and verified between server and clients automatically.
Loom
Install and configure every plugin from one web panel.
PerInfo
PerInfo is a robust utility plugin developed for Minecraft 1.21.1. It was designed to provide total transparency regarding commands and permissions, while transforming the chat experience through dynamic, real-time sharing of items and player status.
Craftable Uncraftables And More!
This mod adds all the uncraftable thing to minecraft and a few extra things.
PuzzleLib
Library(Core) for every Puzzle plugin
QinhCoreLib
Shared core library for the Qinh plugin suite. Unifies item sources (CraftEngine, ItemsAdder, Nexo, MMOItems, MythicMobs & more), attributes, custom-block & model bridges, and scripting. Required by QinhItems, QinhSkills, and other Qinh plugins.
Slipstream
Ultra-fast, zero-allocation packet framework for Paper 1.21+. Coroutine-first, ProtocolLib-style API for modern Kotlin developers.