CartoVoxel Minecraft Shape Maker vs SchemForge Sphere Generator

CartoVoxel Minecraft Shape Maker is a free web tool for planning block geometry with a live 3D preview and coordinate exports. It provides 11 shapes: sphere, cylinder, cone, pyramid, dome, prism, torus, ogive cone, hyperboloid, star and spiral. Users can adjust dimensions, select a material color preset or Minecraft block ID, and toggle filled geometry. A layer view displays generated coordinates in a grid one Y level at a time. Export options are a browser-readable layer guide, JSON coordinates and shape settings, and a Java mcfunction intended for Minecraft Java Edition creative worlds or datapack workflows. Shape generation, previews and downloads run locally in the browser after the page loads; the page says shapes and settings are not uploaded. The tool does not create Litematic, schem, Bedrock structure, mcworld or complete world files. CartoVoxel describes the service as web-based, with no downloads or heavy software required. The listed plan is free and includes all 11 shapes, live 3D and layer views, and the stated exports.

SchemForge Sphere Generator is a browser tool for building Minecraft spheres with custom width, height, and depth, up to 256 blocks. It shows exact Y layers in a top-down guide that marks placed blocks and the previous layer, alongside a rotatable 3D preview. Users can choose a filled sphere or a hollow outline; wall thickness applies only to outline mode. The 3D preview becomes simplified above 31 blocks. Exports include a PNG blueprint, a copied or downloaded layer, and Java Edition or WorldEdit commands. The tool guide suggests WorldEdit for a full sphere and Java Edition commands for layers that are manageable to build. Generation and exports run locally in the browser without an account, AI token, or credit. The Free plan costs nothing and includes one build every day. A 48-hour option costs 0.99 USD one time; Creator costs $3.99 a month, billed yearly at 47.88 USD, with fair-use safeguards. Java Edition exports may require in-game editing for some mod or server configurations.