Toolbox

Circle & Sphere Generator

Pixel-perfect circle, ellipse & sphere blueprints — thin, thick or filled, with block counts, a PNG and a pasteable .schem.

100% free — everything runs in your browser, nothing gets uploaded.

How to use

  • Set width & height
  • Pick thin, thick or filled
  • Switch to sphere for a dome
  • Grab the PNG or .schem
15 × 1540 blocks

Shape

Width

Height

Mode

.schem block

Stone

Using it in-game

  • Read the grid: each square is one block. Lay them out row by row from the PNG.
  • Spheres: the layer slider is one horizontal slice at a time — build from the bottom layer up, using each layer's block count as a checklist.
  • .schem: circles export flat; spheres export as a full 3D structure. Load with WorldEdit (//schem load then //paste) or Litematica.

More block-builder tools: Minecraft Art Studio turns any image into map art with a .schem you can paste. Ready to build for real? Hop on the Rubitec SMP servers (Java + Bedrock).

Free gamer tool, re-themed for Rubitec. No sign-up, no tracking — your files and text never leave this device.