Schematica vs SchemViewer

Schematica is a Minecraft modification for loading, building, and exporting schematic files. It displays a structure as a ghost image in the game, giving players a visual reference while rebuilding. Its loading interface can browse saved or downloaded schematics and sort them into folders. Color indicators distinguish matching blocks, ordinary schematic blocks, block ID or metadata mismatches, and schematic air.

A Materials interface lists what a loaded schematic requires. The printer places blocks within a three-block radius, but still needs some player interaction. Commands can save, list, remove, download, and replace schematics; downloading is available only on servers. The build configuration targets Minecraft 1.12.2 and specifies Forge and LunatriusCore dependencies. The project lists desktop platforms and is licensed under MIT. It is free. A compatibility limit applies: schematics saved in Minecraft 1.7 or newer cannot be loaded in Minecraft 1.6.4 or earlier.

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.