Voxel Circle Generator

Generate perfect circles, filled discs, and rings for any voxel grid. Used for Minecraft builds, voxel art, and game development. Download as PNG or copy the block pattern instantly.

How to use this tool

Set your radius with the slider — the canvas updates in real time. Choose a shape: Hollow gives you just the outline, Filled gives a solid disc, and Ring lets you set both inner and outer radii for a hollow cylinder wall.

Download the result as a PNG to use as a build reference, or copy the text pattern (█ = block, · = empty) to paste into a spreadsheet or notes app.

What is a voxel circle?

A voxel circle is an approximation of a geometric circle on a discrete integer grid. Because voxels sit at whole-number coordinates, a perfect mathematical circle can't be represented exactly — the algorithm finds the closest grid cells to the ideal circle boundary.

This tool uses the midpoint circle algorithm (Bresenham's), which exploits 8-way symmetry to trace the tightest possible approximation with no gaps or doubles.

Used in Minecraft & voxel games

Circular builds in Minecraft — towers, arenas, lakes, dome roofs, portals — all require knowing which blocks to place at each radius. This generator removes the guesswork so you can plan material counts before you start.

For game development, use circle templates for round rooms, wheels, eyes on characters, or any radially-symmetric structure. The coordinates are centered at origin (0, 0) for easy engine import.

Need full 3D voxel models?

Voxel AI generates complete game-ready 3D models — characters, props, architecture — from a text prompt in seconds. Export as FBX, GLTF, or VOX. Free to try.

Try Voxel AI free →