About CircleGen

What this site does

CircleGen is a free Minecraft circle generator. It turns any diameter from 5 to 256 blocks into a block-by-block pixel blueprint for circles, ovals, spheres, domes and arcs. Every blueprint works identically in Java Edition and Bedrock Edition, and everything on this site is free 鈥?no accounts, no paywalls, no ads.

How the generator works

The tool renders a discrete circle on the pixel grid: for a chosen diameter, every cell whose center distance from the middle falls in the half-block ring around the radius is marked as a block. That is the same family of math as the midpoint circle algorithm, and it is why odd diameters produce a clean, symmetric ring. Spheres and domes are built by stacking rings, one layer per slice, from the bottom up.

The methodology is documented by the following public references:

• Wikipedia — Midpoint circle algorithm
• Minecraft Wiki — Building
• Minecraft.net — Official website

Who builds it

CircleGen is made by the CircleGen Team 鈥?a small group of Minecraft builders who got tired of squinting at circle charts. The source code is open on GitHub, and you can reach us any time via the contact page or by opening an issue on GitHub.