Minecraft Java 1.21 Mods
Browse 1,937 free mods for Minecraft Java 1.21 — popular picks include HandyMaths, EligiusHiddenArmor, Nautilus Drops│鸚鵡螺掉落物.
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HandyMaths
This "plugin" is aimed to add mathematics in-game, so you don't have to open up the calculator every time you want to resolve an operation!
EligiusHiddenArmor
The ultimate, highly-optimized armor hider plugin for Bukkit, Spigot, Paper, Purpur, and Folia.
Nautilus Drops│鸚鵡螺掉落物
Nautilus will drop items when killed in any way.│鸚鵡螺無論以何種方式被擊殺都會掉落物品。
Smart Compass & Clock
Show coordinates with compass and time with clock. supports minecraft version 1.21x
PrtProtect
Control what players can craft, interact with, and use.
JS Runner
The plugin aims to add the ability to run JavaScript files in a Minecraft server.
Amai's Let Me Sleep - Sleeping Mode Plugin
Plugin that adds Sleeping mode (hibernate) to server
Harbor Folia
A Folia/Canvas port of Harbor for accelerated night skipping on Minecraft 26.1.2 servers.
RTP FIXED
Fast and lightweight random teleport plugin. Multiverse support, configurable, and optimized performance.
Seamless Survival Overhaul
A modpack designed to enhance and deepen the survival experience, adding new challenges, mechanics, and immersive features.
TrashTweaks
A client-side utility mod with totem cursor assist, FPS/TPS/Ping/Coordinates HUD overlays, player health indicator, performance profiles, and a fully customizable HUD editor. Does not automate gameplay.
Vanilla Origin
Vanilla Origin 1.21.1 is a lightweight mod focused on preserving the core Minecraft experience. It does not introduce RPG systems, magic mechanics, or large gameplay overhauls.
TSM-server-changer 2.0
TSM-server-changer 2.0是一款基於 Fabric 的 Minecraft 客戶端 Mod， 用於在TSM(台灣學生麥塊)更方便的切換伺服器。
SoulChest
Modern Paper plugin for creating protected death chests with GUI management, teleportation, XP storage, holograms, and inventory recovery, built for performance, reliability, and seamless gameplay.
TheClearLag
A Minecraft Paper 1.21 plugin called TheClearLag, designed to reduce lag by automatically and manually cleaning objects on the ground.
ProjectileSpeedLimiter
Limits speed values in Minecraft to reasonable values to prevent a server crash whilst using experimental minecarts.
give2
Give any item to any player, instantly. Browse all Minecraft items, search by name, customize enchantments, and target multiple players.
DragonRespawn
A simple datapack that respawns the Ender Dragon and End Crystals after its killed.
UpgradableHoppersPlugin
A high-performance, Folia-ready hopper solution that enables tiered, stack-based transfers to eliminate item bottlenecks and lag.
CherryTeleport
Cherry Teleport Plugin even there is other teleport plugin it will overrides it
AI Moderator
AI-Moderator is a cutting-edge, high-performance moderation system for Minecraft servers (Paper 1.21+). It combines lightning-fast local heuristic filters with the deep contextual understanding of modern AI models (Gemini, OpenAI, Ollama).
GitWorlds
A Simple World Version control with Github.
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.
Create Edition
This modpack is heavily focused on the Create mod, featuring a large collection of addons and expansions that enhance automation, engineering, and complex mechanical builds.
Cristalxal
Taiga update mod, which also adds new structures and weapons
WorlPreGen
Advanced multi-world chunk pre-generator with GUI and live tracking
Optimized Performance Pack
This project has every mod that you need to play Minecraft or these mods are also optimize your game even in low end PC
StarStacker
A lightweight dropped item stacking plugin written for StarRaid.Minehut.gg which runs on 1.21.10 (paper)
Robot's Datapack Tools
This datapack library adds multiple tools which make datapack creation easier.
Comfortably Optimized
A modpack that aims to optimize minecraft for both Android, and iOS devices, while also for Windows, Mac, and Linux.
SBFixes
Fixes some annoying issues in Hypixel Skyblock
MAutoBroadcast
A high-performance, GUI-driven automated announcement system. Fully customizable intervals and messages with zero performance impact.
Protect My Redstone
A singleplayer mod that detects active redstone ticks in loaded chunks and warns you before you log out to avoid breaking your farms/flying machines.
Away From Crafting (AFC)
An AFK mod that is simple yet powerful and is designed for a multiplayer environment.
NamVelocityBlockVersion
A lightweight Velocity proxy plugin to block specific Minecraft versions per backend server. Supports custom commands and ajQueue integration.