Block Round review
A free web tool for creating rounded Minecraft shapes and exporting compatible files.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Block Round is a free, browser-based generator for Minecraft circles, ellipses, spheres, and ellipsoids. It suits builders who want algorithmic control over rounded forms without installing software or creating an account. The interface supports 2D canvas and 3D voxel visualization, with filled, thin, and thick rendering modes for different construction needs.
Its strongest feature is the control over how shapes are rasterized and displayed. For 2D figures, users can choose Euclidean, Bresenham, or Threshold algorithms, then apply selectable Minecraft block textures. Three-dimensional figures support proportional X, Y, and diagonal cuts, giving users more control over how spheres and ellipsoids are viewed or shaped. Undo and redo controls are included, and the application is designed to work offline as a progressive web application.
Block Round also fits Minecraft editing workflows through its exports. Two-dimensional figures can be exported as PNG files, while Minecraft Sponge schematic v2 files use the .schem extension. The published compatibility includes WorldEdit, Litematica, and MCEdit. Its scope is intentionally focused on rounded geometry rather than a broad library of Minecraft structures, so builders seeking circles, ellipses, spheres, or ellipsoids should find the feature set well aligned. Users needing other shape families or a non-web platform should choose a different tool. For Minecraft builders who want a free, focused generator with schematic compatibility, Block Round is the suitable choice.
Block Round pros and cons
- Where it wins
- Generates circles, ellipses, spheres, and ellipsoids
- Supports multiple algorithms, textures, cuts, and rendering modes
- Exports PNG and .schem files for WorldEdit, Litematica, and MCEdit
- Where it doesn't
- Shape generation focuses on circles, ellipses, spheres, and ellipsoids
- The product is delivered through the web
- PNG export is available for 2D figures
Block Round fact sheet, pricing and score →
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