Minecraft Java 1.21 Mods
Browse 1,917 free mods for Minecraft Java 1.21 — popular picks include Create: Mechanical Factory, Ultra Leaf Decay, SeniorLegend 1K Pack.
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Create: Mechanical Factory
a Create-based tech & factory pack
Ultra Leaf Decay
highly optimized plugin that makes leaves decay instantly
SeniorLegend 1K Pack
A clean, highly optimized 1K celebration resource pack by Senior. Boost your FPS and dominate PvP with sleek textures and smooth visuals!
KillFallingBlocks
A datapack that kills blocks that fall
Simple MobHealthBars
Simple Clean HealthBars for any mob.
Max Ping
Max Ping kicks player's with a ping of 50 or higher by default, you can change this value in the config file.
AntiXRY
A lightweight server-side anti-xray detector mod for Minecraft 1.21.10 on Fabric.
Better Tps
better-tps is an adaptive performance stabilizer for Minecraft servers (Bukkit/Spigot/Paper/Purpur 1.20+). It automatically tunes server settings in real-time to maintain a stable 20 TPS, ensuring a smooth experience for players even during high-load
Custom Mob Spawns (Renewed!)
Simple configurable mob spawning (1.21.5+). Fork of Custom Mob Spawns (which is a fork of Custom Spawns) that supports 1.21.5 and beyond.
Cactus Is Not That Strong│仙人掌沒那麼強
Any item entity is immune to cactus damage.│任何物品實體皆免疫仙人掌傷害。
IVC
This project is an attempt to make the most of the "vanilla" Minecraft client using mods. The rules for the project are simple. I. All mods must be clientside. II. Bugs / game mechanics may not be fixed. III. Improve as much of the client by improving or
Polydex2REI-Forked
Converts Polydex recipes to work with REI!
Craftable Red Sand│可合成紅沙
Added Red Sand recipe.│添加了紅沙配方。
SharedTrades
SharedTrades synchronizes villager trades and cured zombie villager discounts across all players on a server, making trading consistent and fair.
Craftable Gilded Blackstone│可合成鑲金黑石
Added Gilded Blackstone recipe.│添加了黑石配方。
Simple AntiAFK
A simple and lightweight Anti-AFK mod for NeoForge 1.21.1. Prevents AFK kicks by simulating player activity.
PriorityQueue
Make space for your VIPs on your server
MHDF-Tools
MHDF-Tools | Dream Tools | ✨ A lightweight portable high performance Bukkit base plugin ✨MHDF-Tools | 梦之工具 | ✨一款轻量化便携高性能的Bukkit基础插件✨
Sweeter Vanilla
a Mopdpack with the intention of improving Vanilla without altering any of its mechanics, just adding graphic, sound and optimization improvements in various aspects without changing the Vanilla's essence.
Operators Only!
Operators Only is similar to a second Whitelist, except it only allows /op'ed players online the server.
Tabula Vista
High End Tab Plugin , Placeholder Support, Color Support, Hex Color Support
Fantastic Smelting
A small mod to boost your smelting-experience. Allows you to smelt raw resource blocks, saving you time and space.
CPVP Balance Datapack
Crystal PvP Balance Datapack - Changes crystals and anchors, Crystals stack at 16, Anchors are unstackable and require an Ancient Debri to craft.
PlayerCodes
Player Codes lets players share their own live codes with friends and the community. Players must explicitly opt in to publish their codes, so everything is consensual and transparent. Perfect for servers, content creators,
Eternal Nether Star│永恆的下界之星
Nether stars no longer clear after 10 minutes. Same as Bedrock Edition.│下界之星不會在10分鐘後清除。與基岩版一致。
GrindLess
GrindLess is a Minecraft datapack designed to enhance your vanilla gameplay by reducing the tedious gathering of some materials.

PvE Lag Compensation
A mod that makes high ping players suffer a lot less.
DG Login
Secure login & register with anti-bot captcha, TOTP 2FA, Mojang premium verification, and per-player settings GUI.
ClearItems
A high-performance item cleanup mod for Fabric. > 专为 Fabric 打造的高性能掉落物清理模组。
Strengthening Golems│強化傀儡
You can repair snow golems using snowballs, just like you can repair iron golems.│你可以用雪球修復雪傀儡,就像修復鐵傀儡一樣。
LightItemremove
Effortlessly clean up dropped items with a sleek hologram countdown
Villager Age Tweak
Basic mod for player to change villager age cooldown
Fancy Npc Movement Addon
A lightweight, performance-friendly patrol engine for FancyNpcs. Easily set dynamic back-and-forth walking routes for your NPCs using simple in-game commands.
UOM
Useful features for elytrapvp players. Built to improve your game.
Espoir SMP
The plugin's twist is ⚙️ How the system works: 🧿 You start with 3 souls. 🔻 Each time you die, you lose a soul. 💀 At 0 souls, you become a ghost: spectator mode for 24 hours. ⚔️ Kill a player → you steal one of their souls, if you don't already have all
CircuitBreaker
Surgical chunk-based event filters to isolate and defuse lag machines without affecting player performance. Instantly freezes chunk loops exceeding TPS margins.