Minecraft Java 1.21 Mods
Browse 3,935 free mods for Minecraft Java 1.21 — popular picks include ItemStackProMax, Traveler's Backpack Overhaul, [MODIFIED] Cobblemon: Essentials.
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ItemStackProMax
A utility mod that allows stack size modification.
Traveler's Backpack Overhaul
A resource pack for Traveler's Backpack mod.
[MODIFIED] Cobblemon: Essentials
The perfect balance between performance, yet still packed with features! CREATE, Backpacks, QOL, & More!
Evil Seagull
The seagulls in Alex's Mob mod can steal food from your ME Interface block and SophisticatedBackpacks.
Create: Marketplace
A global market board for Create: Numismatics. Register your shops, browse server-wide offers, and navigate to them using Xaero's Minimap.
Item Editor - Component & NBT
Client-side item, component and NBT editor for Fabric. Customize held items, edit NBT data, and modify item components via an extensible GUI.
LootRestock
A lightweight Fabric mod that automatically restocks loot chests after a configurable amount of time has passed.
Kelka Backpack
Backpack/рюкзак
JJs Engineer Mod (Maschinery, PVP, Decorative...)
Engineer, Combat, Ores and Recources and Decorative stuff for 1.12-1.20
World Loading Tweaker
Allows you to change the spawn chunk radius of Minecraft, either speeding up loading or improving spawn quality
Condiments
A variety of Vanilla+ features to add some extra flavor to your modded Minecraft game!
AlixSystem
Login (Command, PIN, Anvil, 2FA) | AntiBot (Advanced) | AntiVPN
ChestSort
Effortlessly sort your chests with a double-click!
CheesePurse [Numismatic AutoLoot]
Auto-deposits Numismatic Overhaul coins into your purse when you pick them up. One toggle button in your inventory, zero hassle.
Clay Overhaul
Add new uses to Minecraft clay!
Better Copper Golem
Make Copper Golems much smarter sorters with chest content memory. Add support for barrels, shulkers and most modded storage. Fine tune potion sorting and every Copper Golem attribute.
PerformanceX
Struggling with LAG??? Look no further! PX is an All-in-one server performance suite - 50 modules including item/mob despawn timers, AI throttling, lag machine detection, auto backups, Discord webhooks, Geyser support, and more. 1.8.8-26.2.

JoaCarpet
A small carpet extension mod with useful features for redstone and storage tech (+some minor survival tweaks)
Leather Bundles
Because the normal recipe just kind of sucks!
Heavy Inventories
Add a little heft to your items!
EconomyGUI
Economy GUI a powerful and intuitive Minecraft plugin for efficient economy management using a beautiful GUI!
Chest on a Stick - Portable Chests
Adds a portable hand-held chest (on a stick) that you can open by right-clicking with it in your hand.
Liquid_Fuels
A highly customizable solution for converting liquid into conventional fuel
Wet Backapacks
A Backpacked addon, adding many different backpacks with their own themes and challenges to unlock!
Vercte's Satchels
Inventory Expansion & Hotbar Fortification
Copper Nugget
Adds Copper Nugget
ProjectCell
Added cell that link projecte and ae2
Cobblemon Marks
Cobblemon Marks is a Cobblemon side-mod that adds obtainable marks from the mainline games.
FastPipes
Fast item, fluid & energy pipes with smart sorting, pipe terminal, tiered barrels, and waterlogging. Supports JEI & Jade.
Strings - Chat Plugin
Customizable chat plugin featuring: Channels ▪ Formatting ▪ MiniMessage ▪ Emojis ▪ Moderation Utilities ▪ World & Proximity Channels ▪ Mentions ▪ Message Deletion ▪ Broadcasts ▪ Join/Leave messages ▪ Developer API ▪ Much More
Open In Inventory
Open guidebooks, backpacks, handhelds and more with a single click in inventory
Create: Springs
Store rotational force using springs!
Tom's Simple Storage NBT Fix [JEI]
A tiny, client-side bugfix addon for Tom's Simple Storage Mod + JEI.
Modular Backpacks
Adds Backpacks and Modules that can be slotted in them for different functionality.
Cell⁴
One cell. Infinite resources. Any filter you need.
Sophisticated Storage Plus
Allow Sophisticated Storage's Barrel/Chest/Shulker Box to exceed the default limits of 180 inventory slots and 10 upgrade slots via config, which means you can even have a barrel with 1,440 item slots!