SchemViewer vs Structurize

SchemViewer is a free browser-based 3D viewer for Minecraft .litematic schematic files. It uses the Deepslate WebGL engine for interactive viewing, with controls to rotate, zoom and pan. A Y-axis slicer changes the visible height to inspect schematic layers, while region controls show or hide individual subregions and their bounding boxes. The searchable materials checklist supports filtering and checking off blocks. Technical mode switches between default Minecraft textures and customized technical textures. Users can export block lists and metadata as CSV or JSON; the placement workflow is export-only. The maker says files are processed offline in the browser and are not uploaded to a server. A Canvas 2D renderer provides a fallback to the WebGL viewer. The listed format is .litematic, and listed platforms include web, Linux, macOS and Windows. The project is licensed under MIT. For local use, the README describes cloning the repository and opening index.html in a web browser.

Structurize is a free Minecraft mod for designing and placing structures in a world. Its Scan Tool can capture an area or change blocks within an area. The Build Tool provides a graphical interface for placing, naming and deleting scans. Finished scans go into a custom `structurize/scans/new` directory and can be placed through the Build Tool when they use the required `.blueprint` extension. Client-server synchronization lets players scan structures on servers and download them locally; configuration can also allow local structures to be pasted to a server. The mod loads structures in buffers to reduce lag, and players or server owners can set the batch size. Structurize is required for the MineColonies mod and is made by the same team. It is listed for client and server environments with Forge and NeoForge, and supports Linux, macOS and Windows. The project is licensed under GNU GPL version 3 and points users to Discord for support. Using it requires Minecraft and a supported mod loader.