How to use the Pixel Circle Generator
- Choose circle or ellipse and set the diameter (or width and height).
- Pick filled or outline, and the outline thickness.
- Read the per-row block counts under the preview, or turn the grid on and count from the image.
- Download a PNG at any scale, or copy the shape as text art or JSON rows.
What you get
- Transparent PNG
- Row guide with block counts (top half; the bottom mirrors it)
- Text art and JSON row data
Tips from making games with it
- Odd diameters have a single center pixel, which suits builds with a center block. Even diameters have a 2×2 center.
- Thick outlines with diagonal neighbours on look rounder; off gives clean stair-steps with no doubled corners.
- For Minecraft domes, generate a circle per layer with shrinking diameters and build them one on top of the other.
- Ellipses work for shadows under sprites: try 12×4 or 16×5 filled in a dark color.
Use cases
- Planning circular builds in Minecraft and other voxel games
- Drawing round shapes, shields, coins and portals in pixel art
- Sprite shadows (flat ellipses)
- Cross-stitch and bead patterns
FAQ
How is the circle calculated?
Each pixel center is tested against the ideal ellipse, so the result is symmetric on both axes and matches the true shape as closely as the grid allows. 3-pixel shapes are drawn as a plus instead of a square.
What does the row guide show?
For each row from the top, the number of blocks in each run. Rows are symmetric, so the guide lists the top half and pairs each row with its mirror at the bottom.
How big can it go?
Up to 256 pixels in width and height.
Can I make an ellipse?
Yes. Switch to ellipse and set width and height separately.
What does the 'thick' option change?
It decides whether diagonal neighbours count when growing the outline inward. On makes the ring look heavier and rounder; off keeps the thin stair-step look.