Minecraft polygon generator

Pick the number of sides, the radius and the rotation and get a regular block polygon: hexagonal towers, octagonal plazas, triangular roofs seen from above. Outline for walls or filled for floors, in 3D at once with export to .litematic and .schem.

How it works

1. Set the dimensions with the sliders — the shape is recalculated instantly and shown in 3D.
2. Pick a block (some tools take two: main and secondary).
3. Turn on Layers to see the shape slice by slice — handy for building by hand.
4. Download .litematic for Litematica or .schem for WorldEdit.

Examples

• Hexagon r=12
• Octagon r=16
• Filled triangle

FAQ

Why do the sides look ragged?

Slanted sides made of whole blocks are always stepped. Rotation changes which sides land flat on the axes: try 0° or 30° for a hexagon and 22° for an octagon.

How do I build this without mods?

Open the schematic in the viewer, turn on Layers and place blocks layer by layer on the grid. With Litematica or WorldEdit the schematic is pasted in one go.

Why does the shape look stepped?

Blocks are whole, so every curve turns into steps — the game does the same. An odd size gives a clean centre block, an even size gives two.

Is it free, no sign-up?

Yes. Everything is computed in the browser; the file is built locally and never uploaded.

See also: Circle & oval · Minecraft builder tools