Struct Saver

StructSaver is a Fabric mod for Minecraft 1.21.5 which lets you save, load and place structures on the fly in-game.

Whether it's colossal cities, complicated redstone creations or smaller decorative buildings, StructSaver provides a simple solution to quickly get hold of reusable structure templates and then place those structures with the aid of intuitive placement previews.

Features

Selection

• Uses the wooden hoe for selections

• Instant two-click corner selection

• Optional single block selection

• Colorful placement outlines (8 presettings)

• Multiplayer synchronization

• Ghost preview of placed structures

Structure Library

• Give your saved structures your own custom names

• Uses JSON for storage of your structures

• Searchable library of your saved structures

• Creation date of your structures

• Rename structures

• Delete structures via a warning prompt

• Warns if you try to overwrite a structure that you already have

Placement

• Real-time ghost preview

• Green outline is for valid placements, red for blocking structures

• Placements are center based on the target block

• Support for rotation of placed structures

• Support for mirroring placed structures

• Left-click to place structures instantly

NBT Support

• Exports to the standard Minecraft NBT file format
• Imports external structures from NBT format
• Easily share structures between world's or even machines

Settings

• Access the settings menu with F6
• Enable/disable area selection or single block selection
• Choose your selection color (8 presettings)
• Works nicely together with Mod Menu

Multiplayer support

StructSaver has support for multiplayer functionality:

• Server side storage of structure library
• Client side rendering of preview/ghost structures
• network synchronization support for saving, loading, renameing, deleting and placing of structures.

Requirements

• Minecraft 1.21.5

• Fabric Loader

• Fabric API

• Java 25

Controls

Key	Action
R	Rotate clockwise
T	Rotate counter-clockwise
F	Mirror X-axis
G	Mirror Z-axis
F6	Open settings

Notes

• Placing of structures is limited to the creative and spectator modes.
• Supported the official Minecraft NBT structure format.