BlockBlend vs MinecraftDome

BlockBlend is a free browser tool for making Minecraft block palettes and geometric build blueprints. Its Circle Generator creates circles, rings, spheres, domes, and cylinders, with block counts, bounding-box information, and layer-by-layer views. Outputs include WorldEdit commands, ASCII blueprints, and JSON. The CraftLab palette library contains more than 300 blocks and can generate combinations around moods such as Medieval, Cyberpunk, Fantasy, and Oceanic. Palettes can be previewed in 3D, shared with the community, and exported as weighted WorldEdit //set commands. The Free plan is listed at free and includes unlimited palettes, all blocks, WorldEdit export, and community sharing. Image-to-palette conversion, schematic import, and map art are marked as coming soon. The privacy policy describes collection of account details and page, feature, and device usage information, as well as Google Analytics for aggregated usage analytics. Account data is retained while an account is active; deleted account data is removed within 30 days.

MinecraftDome is a free, open-source web app that generates dome geometry and construction plans for Minecraft. You draw connected square-mesh surfaces in circles, rectangles, diamonds, ellipses, or hyperellipses, then add anchors to constrain them. Anchors within a layer are treated as points on a plane defined by three points. Shape calculations include parabolic, catenary, and roof loads; setting load values to zero creates a soap-bubble effect. The display can show ideal blocks, a line grid, or Minecraft blocks, with an option requiring adjacent blocks to meet by a face. Generated plans are fixed-width plain text for copying, pasting, or printing. X and Z markers appear every 16 blocks and Y markers every 8, with chunk-line offsets. The documented version has no save, restore, or undo. Catenary calculations can run to infinity, so reset may be needed.