AutoBuild

AutoBuild is a Fabric mod that lets you load schematics, preview them in-game, and build them automatically block by block in your world.

It is made for survival builders, creative builders, multiplayer servers, and content creators who want faster building without losing control over placement, rotation, preview, and materials.

Preview

AutoBuild Demo

Features

Load and build .schem .litematic structures in-game
Real-time ghost preview before building
Move, rotate, and flip the preview with in-game tools
Per-block or per-layer building modes
Adjustable build speed
Undo support for recent placed blocks
Material overview and missing block checks
Creative-only missing materials command
In-game settings menu
Folder-based schematic library
Featured Library for browsing highlighted schematics
Works in both Survival and Creative
Multiplayer friendly with per-player build states and settings

Commands

/autobuild load <file> - Load a schematic
/autobuild list - List available schematics
/autobuild start - Start building the loaded schematic
/autobuild stop - Stop the current build
/autobuild preview <on|off> - Toggle preview rendering
/autobuild speed <value> - Change build speed
/autobuild undo <steps|all> - Undo placed blocks
/autobuild materials - Show required materials
/autobuild missing - Give missing materials in Creative
/autobuild give <previewtool|selectiontool> - Get the preview or selection tool
/autobuild menu - Open the AutoBuild menu

In-Game Tools

Preview Mover Tool

Left Click - Move preview forward
Right Click - Move preview backward
Shift + Click - Rotate preview
Ctrl + Click - Flip preview

Selection Tool

Select two corners to export your own schematic from the world

In-Game Menu

AutoBuild includes a built-in menu for:

Build mode selection
Build speed
Preview visibility
Preview behavior after pause
Preview behavior after stop
Library access
Featured Library access
Export options

Featured Library

AutoBuild now includes a Featured Library where players can browse highlighted schematics through an in-game interface.

This makes it easier to discover builds, preview them, and add them to your workflow without manually searching through folders.

Use Cases

AutoBuild is useful for:

Large survival builds
Creative structure placement
Multiplayer server projects
Repetitive building work
Fast schematic testing
Recording and content creation
Community build events

Videos

Requirements

Fabric Loader
Fabric API

AutoBuild focuses on practical building automation, clean in-game workflow, and better schematic handling while still fitting naturally into normal Minecraft gameplay.

note: works on server when the server also has the mod installed.