Minecraft Java 1.21 Mods
Browse 127 free mods for Minecraft Java 1.21 — popular picks include Twigs, Effortless Building: Sophisticated (Enhanced Fork), Minekea (Fabric/NeoForge).
Updated daily
Twigs
A Minecraft building blocks mod
Effortless Building: Sophisticated (Enhanced Fork)
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.
Minekea (Fabric/NeoForge)
Bookshelves, crates, secret doors, and more! Simple, functional, decorative blocks for all your building and storage needs (some assembly required)
Sundries & Decor
This mod adds new blocks, decorations, and furniture to fulfill your building fantasy!
Real Filing Reborn
Real Filing Reborn is a storage mod built around Filing Folders — items that each hold a massive quantity of a single item type — and Filing Cabinets to house them.
LoginTo
A complete authentication solution for Minecraft servers, providing secure login, database storage, premium autologin and secure otp code with qrcode
Beans Backpacks
A Backpack mod where Aesthetics meet Functionality. Overhauls Minecraft's inventory by building on the Bundle's mechanics.
Instant Classic Houses
Build classic houses instantly
Donut Auction
a Donut Auction House plugin for Paper/Folia servers inspired by DonutSMP.
Warehouse Workshop - A MineColonies Add-On
Adds a crafting module to the MineColonies warehouse that allows crafting from the warehouse inventory.
AzAuctionHouse
AzAuctionHouse is a feature-rich auction house plugin that allows players to buy and sell items seamlessly on your Minecraft server. Built with performance and customization in mind.
Adventurer's BackPack
Adventurer’s Backpack adds magical, upgradeable backpacks for survival. Carry more, protect key items, place your pack in the world, and customize it for mining, building, and exploration without making survival feel like creative mode.
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.
Magic Construction
A powerful building mod that adds magical wands to place multiple blocks at once, with integrated pouches for material storage and repair runes for maintenance.
Aspects: Reclaimed
An Aspects Addon introducing 7 new Aspects inspired by concepts that go beyond the base modification
Create: Better Building
This mod adds a variety of new (mainly decorative) building blocks to the game, which are themed around Create and factories.
Simplebuilding
A simple building mod. Create Faster, Farm Faster, Enjoy The Game Without Loosing Your Soul!
KantoModels
KantoModels is a decoration mod created for map building!
Player Logger
A plugin to log information about your player such as join & leave location (in-game) and many more with MySQL and SQLite Database support.
Craftable Structure Blocks
This Mod Adds 16+ Custom Craftable Structures To Minecraft Such As Houses, Bases, Farms, Mansions & Portals
Guess The Block Minigame
Tired of building a minigame all by yourself? Bored of playing minecraft too? A new minigame now awaits you!
Rose Gold Alloy - Tools, Armor and More
Introduces Rose Gold, a craftable metal between Iron and Diamond. Adds full tool set and a storage block, with armor and more building blocks coming soon.
UsefulDecor: Interactive Craft
Adds functional decorative blocks including storage chests, oak windows, and lockable doors that enhance base security.
PlayerVaults - Unlimited Storage Solution
Infinite personal storage with multi-database support | Lightweight & Lag-Free | 1.21.X
Azur
Experience smooth, lag-free survival adventures with Sodium and Lithium, keeping your FPS high whether you’re mining, building, or exploring. MouseTweaks makes inventory management effortless, while Fullbright lets you see every detail of your world.
Einseinundzwanzig
Early modpack for 1.21. Many structures to explore, ore generation and low tech storage systems are available. Vein mining gives ores and building blocks. CC turtles.
AutoRefillX
Automatically refills your hotbar slot when you run out of blocks or items while building or mining.

Building Gadget Refined Storage Bridge
Adds a bridge allowing Building Gadgets to insert and extract items/fluids from Refined Storage 2 networks.
Sneykor's Cobblemon online
The modpack contains mods that allow you to have fun playing the Cobblemon mod. There is a new world generation, improved content with Pokémon (Pokémon riding, TM/TR, items, regular and legendary Pokémons), farming, building blocks and storage systems etc.
Face ID Door
Secure your base with a biometric scanner door! Only opens for the owner.
Give me More Slab (GMS)
GMS is a simple and practical Minecraft mod that expands building possibilities by adding slabs for many more blocks.
Compressed Box
Create Compressed Boxes to gain space in your base
CobbleBob: A Pokémon Adventure
Welcome to Cobblebob: A Pokémon Adventure! This pack is focused on one thing and one thing only... filling out the Pokédex. For the adventurers, there are dungeons and backpacks. For the builders, there are many different building centered mods.
Malts
An open-source and free Vaults plugin that incorporates a warehouse for mass item storage.
CrownEconomy - All In One | Multiverse Support
All-in-one economy plugin: GUI server shop, auction house, player chest shops, secure trading, banks with interest, and leaderboards. Works with or without Vault. PlaceholderAPI + LuckPerms support. Paper, Purpur, Spigot.
UltimateBanSystem
Powerful all-in-one Minecraft moderation plugin with advanced ban, mute, warn, and kick features. Supports both permanent and temporary punishments with full MySQL database integration for cross-server synchronization and reliable data storage.