Minecraft Java 1.21 Mods
Browse 197 free mods for Minecraft Java 1.21 — popular picks include ItemDisplayPlugin, SmartSort, Fast Slot.
Updated daily
ItemDisplayPlugin
This plugin allows the collection of items dropped within a 5-block radius in Minecraft, merging the items with the same type and displaying their quantity in the item’s custom name. Items that cannot be stacked, such as enchanted equipment (e.g., swords,
SmartSort
Smart inventory and chest sorting plugin.
Fast Slot
Changes Brewing Stand shift-click behavior for Blaze Powder to prioritize the ingredient slot.
Supply Crates
Drop Crates with loot tables for your players!
ModernShowcase
Advanced glass showcase, display anything with custom angles and extreme lightweight performance.
SIR
A simple chat plugin that have a lot of functions to customize your server.
Elements Spear Plugin
Minecraft Spear with magical abilities Epic plugin for your smp
Dekays Smeltable Items
Lets you smelt items you always wanted to in (blast) furnaces
Shimmer - Uncrafting Table
Shimmer is a data pack inspired by the Shimmer liquid in Terraria. It enables players to uncraft items whether in vanilla or modded gameplay, only by dropping them into a source water block near the bottom of the Overworld.
AntiNbtKick
A mod that prevents your player from picking up items that exceed the NBT data limit and prevents being kicked in general.
WorldSystem
Give players the ability to create their own world to play on, without using different servers. (per player worlds)
EntityBatch
Entity Render Batching — sorts entities by type before drawing them so the GPU can render all cows together, all pigs together, etc. instead of switching between types randomly. Fewer GPU state switches = better performance in crowded scenes.

Strength 4
This mod give you strength 4 portion in your game/minecraft world this very use full to figth with you friend more damage more win
Takion
Takion is a powerful Spigot library for advanced chat, text formatting, and messaging utilities in Minecraft plugins.
SpyCore
Organize your worlds, like never before. SpyCore is the modern world manager designed for server owners who are tired of server restart everytime when adds a world. SpyCore gives you full control without needing of restart.
Skiver
Skiver is a modpack for Minecraft that focuses on enhancing your gameplay experience. It features a variety of quality of life improvements, such as better inventory management, easier crafting, and faster loading times. Skiver also boosts your FPS
Create: Archived
Stop belt lag! Automatically compresses thousands of items into a single entity on belts and chutes, fully compatible with all Create processing machines.
Easy Bee
A completly new way to trasport bees with extra tweaks
UltraSpawners [LITE]
UltraSpawners is a lightweight spawner management plugin featuring basic stacking, simple trust permissions, and economy based mob unlocking, designed for survival and economy servers.
Advanced API
AdvancedAPI provides very simple code, for example, ItemBuilder or SimpleInventory, which can be used to create things faster. ONLY FOR PLUGIN DEVELOPERS
AH BackPack
A simple, strong Backpack Plugin for minecraft. Create shared Backpacks, easily!
SettingsProfiles
Save and load profiles of your settings and mod configs.
ZInvisItemFrames
Craft invisible item frames. Folia-compatible invis item frame plugin.
AutoSaveAll
AutoSaveAll is a lightweight Paper/Spigot plugin that automatically runs the save-all command at configurable intervals to prevent data loss. It supports Minecraft versions 1.13 through 1.21 and includes features like chat broadcasts, random
MCommander
Some basic commands collection plugin for your server.
Polydex2REI-Forked
Converts Polydex recipes to work with REI!

Teleport Command
🌐Teleport Commands is a high-performance, Server-Side ONLY teleportation suite for Minecraft. It provides a complete set of player-friendly teleport commands with safety checks, configurable delays, and persistent data storage—no client mods required. 🔌✨
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✨
ADSAnitiray
Blast X-Ray, Freecam & ESP — legit-safe, 100% free, fully yours.Supports all versions.
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
ISS
This Datapack adds an easy way Save and Load player inventories.
Ri0ts Factories
Create massive production factories to automate tasks
QoL
(1.21.5+), Adds Quality of Life features that everyone needs in their Survival worlds/servers (will also include some of my other datapacks/mods in here)
OptiWorld
OptiWorld automatically cleans old dropped items and collects experience orbs every 60 minutes. Smart protection keeps player-placed items and nearby drops safe. Zero lag, works on any server.
FastFlow
FastFlow is a Minecraft plugin that speeds up hoppers and improves server performance by allowing faster item transfers for farms, storage, and sorting systems.
Item Limits
Easily Create limits of those items you don't want at all or just a few of!