Minecraft Java 1.21 Mods
Browse 295 free mods for Minecraft Java 1.21 — popular picks include Twigs, Create Big Cannons, MysticMons.
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Twigs
A Minecraft building blocks mod
Create Big Cannons
A Minecraft mod for building large cannons with the Create mod.
MysticMons
This pack includes models and animations for Pokemon currently not available in the base mod. Also enables Legendaries to spawn in the wild
Mech Trowel
A Trowel+ that randomizes/ shuffle blocks with customizable palettes. Includes building wand functionality. Works with Create/Copycats+, FramedBlocks & Chipped
World Editor
Make building easier with the World Editor datapack! Datapack has singleplayer and multiplayer support.
Tellus
Tellus is a mod that recreates real-world terrain, buildings and roads in Minecraft by generating Earth-scale landscapes from geographic and OSM data.
Cobblebase
Palworld-style Pokemon base management for Cobblemon. Job system with unique per-Pokemon skills, abilities, and base mechanics.
Beans Backpacks
A Backpack mod where Aesthetics meet Functionality. Overhauls Minecraft's inventory by building on the Bundle's mechanics.
The Mighty Architectury
Architectury port of The Mighty Architect. Design elaborate buildings within a minute!
AuctionHousePlus
an /ah command where players can list their items.

Unoriginal
A simple datapack that removes all base origins added by the Origins mod
Donut Auction
a Donut Auction House plugin for Paper/Folia servers inspired by DonutSMP.
Copper Block Beacon Base [PurpurPack]
Allows using any solid copper block in a beacon base. Also allows using copper ingots as a beacon payment item
Builder's Boundry
Make your houses, taverns, and villages feel more alive than ever with Builder's Bounty, a pack of decorative accessories in perfect vanilla Minecraft style!
Redstone Beacon Base [PurpurPack]
Allows you to use redstone blocks as a block in a beacon base
Desire
A mod that focuses on building and simple gameplay tweaks to expand the classic experience to the max!!
Lapis Beacon Base [PurpurPack]
Allows using lapis blocks in a beacon base
Adventure Items Stats
Gaussian variation on base stats of naturally-spawned items — every found sword and armor piece rolls a little different.
Amethyst Beacon Base [PurpurPack]
Make beacon bases of amethyst blocks, and use amethyst shards as beacon payment
notblue's Vegan Recipes
Craft most peaceful and hostile mob drops using vegan base ingredients
The Bad Joke(Плохая шутка)
THE SCARIEST HORROR MOD EVER(100%) arthouse
Spelunker's Palette
Consistent building blocks for minerals and metals
Fadah (Finally a Decent Auction House)
The perfect auctionhouse plugin you have been looking for!
Mob Tweaks
In this data pack you'll find tons of tweaks, buffs/nerfs and improved consistency in worldbuilding when it comes to mobs. Axolotls have become much better, Illusioners are now in the game and there are even a couple of useful new items.
Trade Picker
Skip the RNG of breaking lecterns. Directly select exact vanilla villager trades (like Mending) from a GUI picker every time they level up. Get the lowest base prices instantly without trade cycling.
Armor Trim Abilities
Adds a base power and full set power to every Armor Trim. Each power tackles a different gameplay mechanic.
Rounded
Vanilla+ additions to round out the base game
Ember's Castles And Keeps
Adds big new castles and towers with traps, enemies, loot and even parkour challenges!
Raw Copper Beacon Base [PurpurPack]
Allows using raw copper blocks as a beacon base material. Also allows using raw copper as a beacon payment item

Just Spawn Me There
This mod rewrites logic behind vanilla respawning system, so players would not spawn on top of buildings.
Raw Gold Beacon Base [PurpurPack]
Allows raw gold blocks to be used as a beacon base. Also allows raw gold to be used as a beacon payment item
Raw Iron Block Beacon Base [PurpurPack]
Allows you to use raw iron blocks as a block in a beacon base
EconomySystem
lightweight, no-dependency economy plugin for Minecraft that provides essential digital currency features with optional database support and full configurability.
Enhanced Minecraft 2.0
Makes playing Minecraft feel like you are a child again! A modpack enhancing base mechanics and adding features to the game in every way possible, letting you explore the game again and in new ways ;)
Effortless Building: Sophisticated
Advanced building QoL mod with mirror/array/shape modes, expanded reach, per-axis placement limits, backpack-based building upgrades, compact HUD counts, and clear missing-item feedback for survival building.
TNT Logic - Realistic Explosion Physics
Explosions now trigger realistic, block-by-block structural collapses. Watch entire buildings crumble - one block at a time.