BuildSchematics Converter vs SchemViewer

BuildSchematics Converter changes Minecraft schematic files between supported formats in a web browser. It accepts.litematic,.schem,.nbt,.mcstructure, and older pre-1.13.schematic files, and exports.litematic,.schem,.nbt, or.mcstructure. Legacy numeric block IDs are translated into modern blocks. Conversion happens in the browser, with files read from and written to the device; the maker says browsing, previewing, and downloading need no account. A 3D preview is available, but the workflow is export-only. In Java-to-Bedrock conversions, blocks and positions carry over, and stairs, logs, and slabs keep their orientation. Other rotations use defaults, container contents do not transfer, and blocks without Bedrock equivalents are omitted. The.nbt option is disabled for builds over 48 blocks on any axis. If Litematica or WorldEdit rejects a converted file as too new, the page advises selecting the Minecraft version being played. The free plan is free.

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.