Mods for Minecraft Java
Browse 449 free mods for Minecraft Java — popular picks include Mob Conduit, Aura Building, Dany Copymods.
Step by step: How to install Minecraft Java mods & modpacks
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Mob Conduit
Building a conduit out of netherite blocks (configurable) and placing an end crystal in the middle will result in a conduit that prevents mob spawning in a radius.
Aura Building
A modern building assistant with 3D ghost block previews, 8 build modes, symmetry mirroring, hotbar palette mixing, terrain adaptation, and instant Ctrl+Z undo. Press B to open the menu.
Dany Copymods
Minecraft mod, which adds a device that clones creatures from the base game as well as from other mods
creatifight
A new gamemode for players who want the thrill of building and fighting without worrying about damage and dying. Like creative mode, but with aggressive mobs to battle.
Bronze Age Mod - A Dip In The Past
Immerse yourself in the Bronze Age! Meet new metals, building blocks and foodstuff which will bring you back to an Age of Heroes.
Building Journal
This is Building Journal, a builder's sketchbook and progression guidance system.
BidVault
A complete server-side Auction House system for Minecraft 1.21.4 with built-in economy, advanced filtering, live search, pagination, and an intuitive chest-based GUI.
CasleRush
CastleRush, inspired by the German Youtubers "Rewinside" and "Ungespielt". A Paper Plugin that you can install to play an optimized version of the Format. Build your Castles with how many friends you want and race against them at the end.
Beautiful Auctionhouse
An Serverwide Auctionhouse with inbuild GUI and Bank. You exchange by Emeralds
Infinite Invisibility Potions
Adds potions for granting and removing Infinite Invisibility. Great for building and decoration.

Villager Refugeed
This mod in inspired by the refugee mechanic from matcha flavoured minecraft, and adds a few simple mechanics. It adds a scribe that can sell you deeds, from which you can use to make a house spawnable for a singular villager.
Dreamcraft Network's Cobblestone Variants
This adds a few cobblestone variants for building better realistic buildings
StableAuction
A stable, no bugs, modern feature rich auction house.
Maikura Build Tools
Vanilla-friendly building utility tools for Fabric.
Glyphastic!
By far the best implementation of the Glyph-based magic system from The Owl House!
ArcaneAuctionHouse
💎 The ultimate Auction & Gifting system for Paper 1.21+. Modern GUIs, Multi-Slot Selling, Taxes, Expiry, and fully configurable. 🚀
BetterSlabPlacement
Allows placing full blocks on top of bottom slabs, greatly improves building flexibility. Requires Fabric API.

Slow Building
Slows down placing certain blocks: hold right-click, watch the progress bar, then the block is placed.
FragmentVersion
FragmentVersion is an alternative development branch for Minecraft. Rebuilding the game piece by piece, perfecting vanilla mechanics and introducing entirely new, unique content.
Wand of Replication
Unleash the magic of duplication! The Wand of Replication lets you instantly copy blocks and small structures, making building faster and more efficient. An essential tool for every serious Minecraft builder.
ReplaceIT
ReplaceIT is a lightweight mod that enhances building in Minecraft Survival, allowing you to replace blocks directly without having to break them first.
Reinforce Blocks-Refuerza bloques
Reinforce blocks to protect your house
ArcBuilder
ArcBuilder is a feature-rich mod built on the M-Arch library, providing advanced building, destruction, and world management tools.
Bonfi and Girls
Transform your Minecraft survival into a vibrant adventure with intelligent, beautifully animated companion girls! Build deep relationships, automate base chores, and explore the world alongside companions featuri
boosCooldowns
Per-command cooldowns, warmups, limits, prices and disable rules – with a shared database so your whole network stays in sync.

Mousie Builder Toolkit
Mousie Builder Toolkit adds a set of powerful yet easy-to-use tools that make building easier and give you the freedom to create without the usual limitations.
RandoWand
RandoWand What it does It adds a wand that randomizes blocks when you add them to it, which helps with building gradients in Minecraft. It is a simple mod with simple mechanics, so don't expect anything special.
SaveCoords
Save your coordinates with a configurable limit and SQLite/MySQL database support.
SafeBase
Create a safe zone around your base, allowing (or forbidding) other players. To designate a SafeBase, place a lectern on a wool platform, then add a book-and-quill with a list of player names.
Combo Tools
made stuff easier life will be easier with the new combo tools combo tools allow easier better building
Numismatics treasury & Auction house
Numismatics Treasury expands Numismatics with direct bank transfers, server shops, player-owned shops, and a global Auction House. Every transaction uses Numismatics bank accounts directly, with configurable modules, secure auction payments
Arcana Modifications
[WIP]A mod that aims to change certain vanilla or modded aspects that we sometimes wish were part of the base experience.
FuryAntiElytra
FuryAntiElytra is a modern and lightweight base plugin for Minecraft Paper (and forks like Purpur) designed to restrict and disable Elytra flight in specific worlds.
Mkn Inventory Sync System
A mod that allows inventory sharing between Fabric servers without database
Thirst Exhaustion
Rework of the base game's exhaustion system to integrate it with a new thirst system.
Precast Structure
Add a mechanic to automate repetitive building projects.