Structure debug
by mvciek
Structure Debug is a Fabric mod for testing structures, giving map makers and mod developers a dedicated debug dimension for inspecting them.
What it does
Structure Debug is built to help mod developers and map makers debug world generation. It provides a dedicated debug dimension named structure debug:debug, where every registered structure generates in a grid pattern so each one can be inspected and verified side by side. A Structure Debug world type in the world preset menu creates such a world in one step, which is quicker than setting up a test world by hand.
Inside the debug dimension, a teleport command moves the player straight to a chosen structure, so a specific build can be checked without searching the map. Structure Blocks are placed automatically on the generated structures and set to save mode, which makes it simple to save or manipulate the structures afterward. The mod is server-side only, so only the server needs it. It is open source under the MIT License and requires Fabric API. Files are published for 1.21.1 only, with version 1.0.0 released on 2026-02-05, the same day the mod was first published and last updated.
Key features
Debug dimension grid
Every registered structure is placed in a grid inside a separate dimension, so structures can be compared in one place.
Debug world type
A Structure Debug option in the world preset menu creates a test world with the debug dimension ready to use.
Structure teleport command
A command moves the player to a specific structure inside the debug dimension, skipping the search.
Automatic structure blocks
Structure Blocks are added to each generated structure in save mode, so the structure can be exported with little setup.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Who it’s for: Mod developers and map makers who need to verify structure generation. Players who only want to explore a normal world do not need this mod.
How it compares
Palette Cleanser is server-side only, open source under the MIT License and built for Fabric on 1.16.2 – 1.18, so it covers an older range than Structure Debug. No More Structures: Full is server-side only, open source under the CC0 1.0 Universal license and published for Fabric on 1.18.2 – 1.21. World Preview is client-side only and open source under the Apache License 2.0, with files for Fabric, Forge and Quilt on 1.20 – 1.21.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Structure debug | Fabric | 1.21.1 | Server-side only | 2026-02-05 |
| Palette Cleanser | Fabric | 1.16.2 – 1.18 | Server-side only | 2024-01-15 |
| No More Structures: Full | Fabric | 1.18.2 – 1.21 | Server-side only | 2024-07-10 |
| World Preview | Fabric, Forge and Quilt | 1.20 – 1.21 | Client-side only | 2024-09-05 |
Questions
Does Structure Debug require Fabric API?
Does the mod have to be installed on the client?
Which game versions does Structure Debug support?
Is the source code available?
In the catalog
Structure debug is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from mvciek
Similar mods
What the author says
Structure Debug is a Minecraft Fabric mod designed to assist mod developers and map makers in debugging and testing structures. It provides a dedicated dimension where registered structures are generated in a grid, making it easy to inspect and verify them.
Official listing
- Modrinth page
- modrinth.com/mod/structure-debug
- Owner
- mvciek
- Published
- 2026-02-05
- Updated on Modrinth
- 2026-02-05
- Facts verified
- 2026-10-15