Minecraft Java 1.21 Mods
Browse 46 free mods for Minecraft Java 1.21 — popular picks include Minecarts with Blocks, Adaptive Entity Prioritization (AEP), RecapPVP.
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Minecarts with Blocks
put a block in a cart! survival friendly!
Adaptive Entity Prioritization (AEP)
AEP dynamically reduces lag by throttling mob AI and item merge checks based on server strain.
RecapPVP
This is a new way to track progression throughout training PVP! Track your pvp stats your way!
Caravans
Working pack-animal caravans for Paper and Purpur. Llamas follow in formation, carry 90 slots across saddlebag pages, run loot home on their own, and stand guard. Lead camels, wolf protectors, donkeys, and mules included.
Portable Structure Containers
Capture, carry, place, and retrieve compact structures.
Void Cleaner
VoidCleaner automatically and intelligently cleans up dropped items, projectiles, vehicles, and mobs from your server, storing them in a special "void" (storage).

Shader Carry Forked
Fixes Carry On rendering bugs with shaders for Fabric and NeoForge.
Railbound
better minecarts: minecart trains, blast furnace minecarts, dispenser minecarts, junction rails, controller rails, destructor rails, and more
CarbonAuction
CarbonAuction is a Minecraft plugin that adds a player-to-player auction house menu.
The Cardboard Box Extension Mod (1.21.4, 1.20.1) – Pack And Go, Simplify Inventory Management
The Cardboard Box Extension Mod enhances item storage and transportation by adding new features to the classic cardboard box mechanic. This mod allows players to store, move, and organize items more efficiently, making it ideal for large-scale builds and automation. Features: Shift-right-click to encapsulate tile entities in cardboard boxes for easy transportation. Break the box […]