Minecraft Java 1.21 Mods
Browse 3,940 free mods for Minecraft Java 1.21 — popular picks include BackPackSSS, Nostalgia Blocks, OmniSMP.
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BackPackSSS
Custom tiered backpacks with progression crafting, upgrade system and persistent storage — designed for survival servers.
Nostalgia Blocks
Use Classic textured Minecraft blocks without resource packs and build to your heart's old content!
OmniSMP
Lands Claim plugin protection. It allows players to protect their builds, manage members, and customize their settlement settings without relying on clunky golden-shovel mechanics.
EasyNotes
A powerful yet simple GUI-based note taking system that allows players to store and manage their personal notes on your server.
One Stack Size
Makes every single item have a stack size of 1, because why the hell not.
AH BackPack
A simple, strong Backpack Plugin for minecraft. Create shared Backpacks, easily!
Toms_Simple_Storage_in_TFC
A compat mod of Tom's Simple Storage for tfc
Non-Stackable Bundle Slots
Allow non-stackable items to fit in bundles - at the cost of some bundle slots.
Blue's QuickEquip
Allows players to toggle their equipped armor on and off using customizable keybinds.
InventoryPro
edit player inventory,change profile switch
DG Spawners
Complete spawner plugin for Paper 1.21+. GUI shop, upgrades, auto-collect, virtual storage, holograms, trust system. Place on any block.
Hand Shulker
Simple E Chest command + Openable Shulkers from the inventory.
Juice-PlayerVaults
Minecraft 1.21.1 Fabric PlayerVaults mod
Some KeepInventory
🛡️ Selective KeepInventory (Datapack for Minecraft 1.21.5) Selective KeepInventory lets players keep only specific items when they die — no full inventory saves, no complete loss. It’s a perfect middle ground for survival, multiplayer, and adventure-style
Excalibur | Backpacks For Dummies support
This resource pack redraws the Backpacks For Dummies mod in the Excalibur style
Funny Item
Welcome to download Funny Item! In this mod, you'll discover a series of amazing new items that will breathe new life into your gaming experience.
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.
SevenZipBackup
The very first 7-zip backup plugin for Minecraft server. Saving up to 50% of drive storage copmparing to zip archives!
Label My Items
Adds item labels, which can label items
LockItem-Fabric
A client-side Fabric mod for Minecraft 1.21.1 that prevents accidental drops of hotbar items.
Chestify
Chestify allows players to secure chests with PIN codes, enhancing item protection without altering the vanilla gameplay experience.
ItemLocator
ItemLocator helps players track and locate items in Minecraft chests by marking their locations with glowing beacons, making organization and retrieval easier.
LiftChest
Paper plugin for carrying chest on your hands
Comprehensive Woodcutter
Datapack adding every possible reasonable wood-related recipe to the stonecutter
Terrastorage Dark UI
Replaces Terrastorage inventory and chest buttons with darker ones.
LagCleanX
LagCleanX is a lightweight and efficient lag management plugin designed to keep your Minecraft server running smoothly. It periodically removes unnecessary entities, clears dropped items, and provides customizable cleanup settings to ensure Good Gameplay
ViewInventory
You can view and edit other players' inventories.
Green and Brown Dye Recipes
Adds crafting recipes for both green and brown dyes
Armadillo Boxes
Adds lesser-good versions of Shulker boxes
Create: Lunatic's Additions
Leather automation to the Create Mod!
NAT-Whitelist
A better Whitelist management plugin (Support Discord Webhooks, MySQL)
Resource Armadillo
The way to generate valuable resources. Get an Armadillo and transform it into anything you want.
PlotMe
Plot management plugin for Paper 1.21+ — modernized maintenance fork of the abandoned WorldCretornica PlotMe, with the default plot-world generator bundled in.
Keysmith: Lock & Key System
Keysmith: Lock & Key System – A plugin that lets players lock chests, doors, and mounts using unique, tradable keys. Ideal for SMPs, it enables physical item-based security, key duplication, and optional lockpicking mechanics.
Kitchen Sink Modpack Template Pack
A modpack with many basic mods for starting a kitchen-sink modpack. Including world gen, performance, graphical, storage, extra mobs and quality of life mods.
(Rustic's) Bountiful Seals
Adds many arctic-themed features (such as seals!)