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Structural Tools

by Non_coffee

Structural Tools is a Forge utility for creating multiblock structures and custom machine models, with an in-game export tool and a Blockbench plugin.

ForgeClient and serverAll rights reserved1.20.1

What it does

The mod lets players select an area in the world and export its blocks as structure JSON files. Two formats are included: a standard JSON export and an export for Modular Machinery Community Edition (MMCE), which defines machine structures. The wand used for selection sets two positions, with a shift-and-click and an alt-and-click shortcut, and scroll input adjusts the selected region.

A companion Blockbench plugin, structural tools importer.js, loads the exported files for visual editing. Complex builds can be turned into low-poly models: neighboring blocks get combined, and the number of blocks drops sharply. Shell extraction, cavity filling, shell preservation and visible-face retention help produce very simple models, and the Force Max modes are intended for previewing simplified builds. The mod is aimed at modpack creators and developers. The server and every player need the mod installed. Files are published for Forge only, for Minecraft 1.20.1, and the code is covered by All rights reserved, not open source.

Key features

  1. Standard structure export

    Selected areas are written out as standard JSON structure data that other tools can read.

  2. MMCE export and import

    Structures can be exported in Modular Machinery Community Edition format, and the Smart Import option reads them back into Blockbench.

  3. Smart block merging

    Adjacent blocks are merged into larger shapes, reducing the polygon count of the exported model.

  4. Model simplification modes

    Shell extraction, cavity filling and uniform scaling produce ultra-low-poly versions of complex builds, with Force Max modes for previews.

  5. Blockbench plugin loading

    The importer plugin is installed by copying it into the Blockbench tools folder and loaded from the File menu.

Compatibility

Latest build for each game version and loader.

1.20.11.0.0
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Who it’s for: Modpack creators and developers who build multiblock structures or custom machine models for Forge on Minecraft 1.20.1, and who want a Blockbench workflow alongside the in-game export.

Questions

Does Structural Tools need to be installed on the server?

Yes. Every player and the server need a copy of the mod.

Which export format should be used for Modular Machinery?

The MMCE export writes the structure in the format Modular Machinery Community Edition reads. The standard JSON export is for other tools.

How is the Blockbench plugin installed?

Copy structural tools importer.js from the mod directory into the Blockbench tools folder, then load a generated JSON file through File in Blockbench.

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What the author says

Structural Tools is a utility mod designed for modpack creators and developers. It exports in-game structures into JSON files, essential for creating multiblock structures or custom machine models. Key Features - Structure Export: Export selected areas as standard JSON data. - MMCE Support: Supports exporting to…
Non_coffee, on the Modrinth page

Official listing

Owner
Non_coffee
Published
2026-02-23
Updated on Modrinth
2026-02-23
Facts verified
2026-10-15
Open on ModrinthCompare