SEAMLESS PATTERN TESTER
Repeat modes explained
A straight repeat places identical copies in aligned rows and columns. Half-drop shifts alternate columns vertically by half a tile. Brick shifts alternate rows horizontally by half a tile. Mirrored repeat flips alternate tiles horizontally and vertically.
How it works
Choose a repeat mode, rotate the source tile, and adjust tile width to inspect both close details and the overall rhythm. Offset sliders move the starting position without changing the source pixels. Boundary guides show tile placement and are excluded from downloads.
Test a pattern ↗Repeat modes explained
A straight repeat places identical copies in aligned rows and columns. Half-drop shifts alternate columns vertically by half a tile. Brick shifts alternate rows horizontally by half a tile. Mirrored repeat flips alternate tiles horizontally and vertically.
↗02Finding pattern seams
The centered seam view wraps the source tile by half its width and height. The original left/right and top/bottom joins move into the center, making abrupt changes easier to inspect. This view does not apply the selected repeat mode or repair the image.
↗03Exporting pattern PNGs
Repeat exports are PNG files from 256 to 4096 pixels on each side. They keep the preview’s horizontal pattern coverage; changing the export aspect ratio reveals more or less vertical area. Guides and the checkerboard are never included. Transparent background preserves transparency.
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