Minecraft Java 1.21 Mods
Browse 1,912 free mods for Minecraft Java 1.21 — popular picks include BetterTimber, Fluorium, InstaSmeltX.
Updated daily
BetterTimber
Just a simple lumberjack plugin that allows players to chop down an entire tree with just breaking one log, if they have a special axe - completely customizable
Fluorium
Fluorium is a client-side performance optimization mod for Minecraft 1.21.5 built on Fabric. Its main goal is to improve game performance without altering gameplay. Fluorium uses **Entity Culling** to skip rendering entities that are not visible to the pl
InstaSmeltX
A plugin that allows furnaces to instantly smelt
Super Fast Ghasts
Speed and Health Boost for Happy Ghasts
SkHttp
skript addon for http
Saturative Overhaul
Changes hunger and saturation system. Make food more useful, Make life harder. Learn more in description and github.改写了饥饿饱食度系统,让食物更有用,让生活更艰苦。在详见详情或Github。
TrapPvP+
TrapPvPPlus (Fabric, client side) is a lightweight QoL mod for TrapPvP servers. It auto runs a commands or performs a safety action when triggered.
Toggle and Hold Sneak/Sprint
A simple mod to add dedicated toggle/hold sneak/sprint keys.
Linear Sensitivity
Make Sensitivity linear.
No Global Sounds
Stop global sounds like the wither's spawning, ender dragon death, end portal activation.
zItemStacker
Allows you to stack your items to reduce the number of items on the floor
Uuirco's Crystal Optimizer
A lightweight Fabric mod that improves End Crystal responsiveness by removing crystal placement delay, instantly hiding broken crystals client-side, and providing configurable crystal spin speed.
OutlineX
OutlineX is a lightweight Minecraft mod that highlights blocks with smooth, customizable outlines.

Arte
A mod/plugin that optimizes big server resource packs!
XGamemode
You're not switching modes, you're switching dimensions.
VulkanPojav
📱 A lightweight Vulkan-powered performance environment for PojavLauncher, built to improve rendering efficiency, stability, and compatibility on Android devices.
ZonePractice Pro Duels
Elevate your server with the ultimate high performance Minecraft Modern PvP practice core plugin for playing duels.
Dye+
Adds ways to combine items like wool and concrete powder to form different colors, and adds and adds recipes for dyes, (in which they should have) such as one for green dye and a few for brown dye.
Lag Clear
This mod is designed for Minecraft version 1.21.11 and automatically deletes unnecessary items that fall to the ground every 5 minutes. The mod is in the beta phase.
Parry Shields
Adds new shield mechanics focused on parrying.
Destan's Shield Optimizer
Shield Optimizer fixes clunky shield inputs by buffering early clicks and preventing accidental shield drops. Client-side, anti-cheat safe PvP/PvE combat QoL.
DeathChests
Simple lightweight plugin that stores your items in chests(graves) on death, and lets you know where you died. (PS: better with Java than drawing)
BetterAFK
A simple stylistic AFK plugin with holograms which is fully customisable with PlaceholderAPI support
Better Left Click
Allows you to use left click bind like normal but not lose out on the competitive and survival advantage of using a keyboard key.
No Bugs
A mod where the maximum number of bugs are fixed
Minecraft But.. Stone Drops OP Items!
🪨 Minecraft But.. Stone Drops OP Items!
Prism Performance
Adaptive performance optimization mod for Minecraft 1.21 designed to enhance FPS and reduce frame drops.
B-RTP
BlanketRTP is a Minecraft Fabric mod that offers customizable rtp (random teleportation), including biome-specific options. Enhance exploration with a gliding mechanic after the (RTP). Easy to configure and optimized for performance
Cree's Dynamic Doors
Double doors will now open and close together or synchronize if one is open and the other is closed!
Inventory Highlighter (HighlightRender)
Highlights items in your inventory 🎒 with different colors 🌈 THE FIRST remake of “Highlighter” 🔄 based on type and enchantments ✨. for newer versions 🆕, fully customizable ⚙️ with adjustable colors 🎨, rules 📏, and highlighting 🔍.
PauseGame
Dynamically pause your multiplayer worlds!
Packet Shield
Client-side mod that automatically prevents kicks from malformed packets, excessive payloads, or impossible movement. Filters packets, checks rotation, and throttles interactions.

CraftsExpanded+
More crafts in the vanilla game! Recently added Trident crafting and the ability to smelt Rotten Flesh into Leather! Also, Horse Armor and Saddle are now craftable!

Hopplet (Hopper Filters)
Expressive hopper filtering, written as plain text. The most powerful plugin in this domain. Filter by any item property. Extendable via a strong developer API.
Auto-fishing mod
A mod to automatically reel in and re-cast your rod. Made to work with Fabric.
PySpigot
A Python scripting engine (plugin) for Minecraft servers running Bukkit or one of its forks (Spigot, Paper, etc.).