Source image
01 / EDITOn: previews update while painting. Off: previews update when you release the brush.
Drag inside the outline to move it. Drag a corner to resize proportionally. You can also drop an image here or paste one from the clipboard.
Symmetry tile
02 / TRANSFORMActual tile proportions are preserved; empty margins are intentional for wide tiles.
Repeated pattern
03 / PREVIEWDrag to pan; use the mouse wheel or ± buttons to zoom. This view does not alter the source selection or tile.
Symmetry construction
Source positioning
Select tool: drag just outside a corner to rotate. Hold Shift to snap by 15°.
Softens the transitions between motifs. Dashed outline shows the feather boundary around your selection.
Output
Aspect ratio locked to the symmetry tile. Editing either dimension calculates the other. Maximum 8192 px per side / 16 megapixels.
Pattern PNG uses the preview's current zoom and pan. Tile PNG is always the unpanned seamless tile.