Litematica vs Schemalook

Litematica is a free client-side mod for Minecraft that adds tools for working with schematic builds. Users can load schematic files, create placements, and save selected areas as schematics. Placements can be moved or rotated, and a render-layer view can show a chosen block layer. Edit Schematic mode supports replacing, adding, and removing blocks; other creative tools include cloning, filling, and deleting areas. Supported formats include Litematica .litematic, Sponge .schem, vanilla structure .nbt, and MCEdit/Schematica .schematic. Litematica requires the malilib library mod; the project says Fabric API is not needed. Its repository describes versions for LiteLoader on Minecraft 1.12.2, an earlier Rift port for 1.13.2, Fabric for 1.14 and later, and Forge for 1.12.2. Schematic pasting uses commands and requires sufficient permission, so server use depends on authorization. Schematics saved from typical multiplayer servers may lack inventory and other NBT data. The project wiki provides documentation and usage tips.

Schemalook is a free web-based Minecraft schematic viewer and toolkit. Its viewer opens.litematic,.schem,.schematic, and.nbt files in 3D, with orbiting, zooming, shadow and day/night controls, and layer-by-layer inspection. It counts required blocks and links each block to a wiki page containing recipes and stats. Files remain on the device unless saved to a Schemalook library. Saved builds can be private, shared by link, or limited to specific people, with download controls. The pixel-art tool converts PNG, JPG, and WebP images into block schematics, accepting files up to 10 MB and 4096 pixels per side. A map-art tool supports layouts up to 4×4 maps. Palette generation suggests block combinations by texture colour and permits palettes of three to eight blocks. The converter exports litematic, schem, nbt, and Bedrock mcstructure formats and warns about replacements for older game versions. The free viewer upload limit is 7 MB, and the workflow is export-only.