Minecraft Java 1.21 Mods
Browse 432 free mods for Minecraft Java 1.21 — popular picks include UltraSpawners [LITE], BackPack Plugin, Advanced API.
Updated daily
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.
BackPack Plugin
It's a Minecraft Plugin that adds Backpacks to the game. It works with all 1.21 versions, Tested on 1.21.5 and 1.21.8. Fully customizable. You can get them by Crafting, or with a command.
Advanced API
AdvancedAPI provides very simple code, for example, ItemBuilder or SimpleInventory, which can be used to create things faster. ONLY FOR PLUGIN DEVELOPERS
LsEnderChest
Custom virtual Ender Chest storage with safe and flexible access
BackPackSSS
Custom tiered backpacks with progression crafting, upgrade system and persistent storage — designed for survival servers.
InventoryPro
edit player inventory,change profile switch
Create: Meat Blocks
Brings back Meat Blocks from MineFactory in a new, Create style! Features the slaughterhouse, ingots, straws, and baconator (autofeeder). Create your own meat processing plant today!
AH BackPack
A simple, strong Backpack Plugin for minecraft. Create shared Backpacks, easily!
Monier
Monier introduces a robust banking, economy system and real tradeable money to Minecraft. Whether you want to set up a server economy or just flex your wealth with high-value items, Monier has you covered.
lifestealXX
A lifesteal plugin made by Robin
Sound Manager
This is the mod for usually used for muting or changing the voice of the mobs,blocks or generall things like death, fall damage , hit etc. You can edit them customly see images for more info
GreifPrevention Addon
GreifPrevention AntiClaim addon is a lightweight extension for GriefPrevention that prevents players from creating land claims too close to existing claims.
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

Torus
Electricity and machines without mods.
MCommander
Some basic commands collection plugin for your server.
RED OS
RED-OS is a technological suite for Minecraft, it is a unified operating system for your world.
PackMaster
Searching for resource pack assigning plugin like Oraxen, Itemsadder? No worries i made free alt
Polydex2REI-Forked
Converts Polydex recipes to work with REI!
StatsSigns
StatsSigns expands StatsMod to sign displaying
CheckYourChest
CheckYourChest is a Minecraft mod that lets you track chest contents in real-time and receive automated updates via Discord webhook.
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✨
Modular Storage System
Add mass item storage, sorting and logistics to your Minecraft server.
ADSAnitiray
Blast X-Ray, Freecam & ESP — legit-safe, 100% free, fully yours.Supports all versions.
Wireless Redstone Plugin
Adds wireless redstone to cross long distances easily
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.
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
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)
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.
Create: Mintage
Make Custom Currencies For Player Driven Economies
InfinityPhone
Virtual Smartphones
Item Limits
Easily Create limits of those items you don't want at all or just a few of!
Auto-worldreset
A good automatic world reset plugin that allows you to automatically reset your worlds. Prefect for farmworlds
World Download
Minecraft plugin for downloading worlds as ZIP files for players.
Minecraft But EVERY Mob Explodes!
Pretty much"Minecraft but Every Mob Explodes" lol