Minecraft Java 1.21 Mods
Browse 54 free mods for Minecraft Java 1.21 — popular picks include Twigs, The Mighty Architectury, Builder's Boundry.
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Twigs
A Minecraft building blocks mod
The Mighty Architectury
Architectury port of The Mighty Architect. Design elaborate buildings within a minute!
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!
Desire
A mod that focuses on building and simple gameplay tweaks to expand the classic experience to the max!!
Spelunker's Palette
Consistent building blocks for minerals and metals
Building Shift
Cancels Interaction with Functional Blocks without holding Shift Key! Use Commands or Binded Key to toggle, G by default
Simplebuilding
A simple building mod. Create Faster, Farm Faster, Enjoy The Game Without Loosing Your Soul!
Builderdash
Building-Related Party Minigames - Server Side Only
Cancel Block Update
Cancel block updates, block schedule ticks, random ticks, place validation, fluid schedule ticks, for building and debug use.
CityUtils
Customizable roads that you can rotate around, street signs like stop signs and speed limit signs, so much to help your city building process
CreativeUtilities
Collection of a lot of tiny features that help with building
Auto Map Update
Auto Map Update is a mod to make your map have all the new building you built after creating a map
Castle Siege | King, teams, kits, abilities, arenas & more
Seize or Shield in Castle Siege, Inspired by Mineplex
Grid Easy
A lightweight 3D grid overlay for precise building, alignment, and per-axis spacing control. 정밀한 건축과 축별 간격 조절을 위한 가볍고 최적화된 3D Grid Overlay 모드입니다.
Mobo's Structures
Pirate Ships! Castles! Dungeons! Towers and More! If you're an explorer, this datapack is for YOU!
Opaque
Build with glass like it’s a box of coloured candy. Opaque adds a full set of glass building parts in every vanilla glass color (plus clear): doors, trapdoors, fences, fence gates, and stairs. They look airy light and bright
Palettable
Adds an in-game color gradient creator, aimed at making building more relaxing and digestible.
Toms Server Additions: Bouncy Castle!
Serverside colourful bouncy blocks!
The watcher is a killer
This is a horror mod there are 4 observers, each of them has his own house, but I advise you not to enter there and there is a chance to die and start playing around with the mod, you will see for yourself after installation
Region Selection Viewer
A WorldEdit and Axiom selection viewer for precise building and visualizing in Mini-maps.
Create: Meat Blocks
Brings back Meat Blocks from MineFactory in a new, Create style! Features the slaughterhouse, ingots, straws, and baconator (autofeeder). Create your own meat processing plant today!
Biome Bound Blocks
Certain building blocks can only be placed in their native biome, encouraging architectural harmony with the environment.
MHDF-Tools
MHDF-Tools | Dream Tools | ✨ A lightweight portable high performance Bukkit base plugin ✨MHDF-Tools | 梦之工具 | ✨一款轻量化便携高性能的Bukkit基础插件✨
GhostBlocks Remastered
Simple Vanilla+ Plugin, useful for building and map creation!
Don's Building Stuff
A collection of tools that makes building insanely enjoyable
Arataki's greenhouses
This mod adds a new block, using which you can unload the routine of extracting items of plant origin, because now the greenhouse block will do it for you
Deck Of Cards
Tired of building/farming/traveling? Play cards with your friends!
Deploy & Destroy
A simple mod that adds some useful tools and a few building blocks.
Dyable Wools
Dyable Wools lets you dye wool directly in crafting tables, making colorful building easier and faster.
Kaban Central
Collection of Vanilla+ additions and changes for: building, exploring and chatting
MagicStructure
Add trees, dungeons, new buildings, and flying islands from schematics to your world generation.
Model Blueprint
Import .obj models into Minecraft as non-collidable wireframe blueprints for effortless building guidance.
Netherite Block Smithing
Instead of being a storage block, makes Netherite blocks just a fancy building block.
Galacticrow Additions
A mod that adds building blocks and unique tools for you to use.
Sideways Building
This is a building mod that introduces an overhauled placement mechanic for stairs and other blocks in Minecraft.
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.