Block Round vs SchemForge Sphere Generator

Block Round is a free browser tool for making circles, ellipses, spheres, and ellipsoids with Minecraft block textures. Its 2D modes offer Euclidean, Bresenham, and Threshold algorithms; the 3D modes include X, Y, and 45-degree diagonal cuts, with a 3D preview. Users can choose blocks such as Grass Block, Dirt, Stone, Oak, Diamond, Sand, and Gravel, or a Random mix. The tool exports 2D figures as PNG and 3D figures as Sponge schematic v2 files, which WorldEdit, Litematica, and MCEdit can import. It runs in a browser without installation, an account, or a backend, and works offline as a PWA. Settings last for the session and reset to defaults after a reload. A technical math companion is available in nine languages, with each PDF described as at least 25 pages. The project states that its code, layout, design system, and sound engine are All Rights Reserved, and says it is not affiliated with, endorsed by, or sponsored by Mojang Studios or Microsoft.

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.