Minecraft Java 1.21 Mods
Browse 3,940 free mods for Minecraft Java 1.21 — popular picks include Shulker Trims, Sound Manager, Spectrum Storage.
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Shulker Trims
shulker box + armor trim + smithing table = tell your boxes apart at a glance
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
Spectrum Storage
Adds storage related items to spectrum progression

Torus
Electricity and machines without mods.

Copper Storage
Adds Copper Boxes that work like Shulker Boxes with limited space.
Persistent Storage
Store variables between worlds
CustomGuiReworked
a simple plugin to create Custom GUI Inventory interfaces with saving data items system
Torrential
Adds new mechanics to Minecraft's fishing system to give it more depth and rewards.
RecoverMobs
Did you accidentally kill all the mobs with /kill? It's now recoverable
Minecraft Chess
An unofficial fan plugin based on the YouTube PvP project Minecraft Risiko.
Lordphenex Potion Bag
With this potion bag, you can store multiple potions in a single slot
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
Epical Thingies
An epic mod that adds a bunch of... Stuff! ¯\_(ツ)_/¯
LilBackPacks
A lightweight yet powerful backpack plugin that puts customization at your fingertips!
True Favorite Items
True Favorite Items lets you lock your most important items so you never accidentally throw them away, die with them, or lose them in crafting! Perfect for protecting your enchanted diamond gear, totems of undying, or any item you can't afford to lose.
VirtualSignStorage
Store items in Signs via Database!
Shulker Vault
Have you ever want a vault to act fairly similar to a shulker box? The shulker vault retains its inventory and opens just like a shulker box.
Craftable OP chests
Adds craft-able chests with custom loot tables that scale based on material used! Perfect for manhunts, op loot videos, and whacky gaming!

Traveler's Journal
Part of the Traveler's Series; provide a player with a book upon joining, with its content dynamically managed and continuously updated by the admin from a markdown file.
PackMaster
Searching for resource pack assigning plugin like Oraxen, Itemsadder? No worries i made free alt
Recipe Book Plus
QoL improvements to vanilla recipe book
Amai's Backpack
Backpack plugin (/backpack) that have customizable amount of slots permissions and preinstalled 3 languages but you can create own too!
Mizuno|Sophisticated Storage
Make Sophisticated Storage mod compatible with Mizuno resource pack.
Omni Chest
An Omni Chest is like an Ender Chest, but public for everyone
UpgradeMyDog
A lightweight, configurable plugin that allows players to level up their pet wolves (dogs). Improve their health, damage, and speed to turn your loyal companion into a true ally.
TFC Structure Compat
TerraFirmaCraft compatibility for structure mods.
Useful Bookshelves
Some Bookshelves to store your so many many books.
FishPro
FishPro rewards fishing with coins, upgrades, and a shop; intuitive menus, optionally disables vanilla rod enchanting, and quick setup and reload.
Basic Chest Search
Adds Search ability to containers with various filters.
Automatic Smelt
Every block you break that can be smelted will automatically drop its smelted form instead of the raw material.
Bundlepacks
Turn your bundles into backpacks!
RED OS
RED-OS is a technological suite for Minecraft, it is a unified operating system for your world.
Instant Ingot
No more raw ores - go straight to their ingot form!
Auri's Extras
Auri's Extras is a collection of simple, intuitive crafting recipes that blend seamlessly with Vanilla Minecraft. Each addition fills a small gap — the kind you didn’t know you needed until it was there. No fluff, just the quality-of-life tweaks that make
AutoUnArmorX
Automatically unequips armor pieces when they reach 1 durability to prevent them from breaking. 100% client-side and works on any server.
Cheaper Scaffolding
Craft scaffolding with sticks! (doesn't replace default recipe)