Seamless pattern checker for tile repeats
Upload an image, preview the repeat, and see whether the opposite edges are clean enough for seamless pattern, textile, wallpaper, game, or material workflows.
Check the repeat before you use the image
Drop in a source image, switch between single, 2x2, and 3x3 previews, then use the seam score to decide whether the pattern is ready or needs seamless treatment.
Upload locally
PNG, JPEG, or WebP files are decoded in your browser.
Inspect the repeat
Switch between single, 2x2, and 3x3 previews.
Repair or export
Repair imperfect images or send clean tiles to the canvas filler.
Drop an image to check
Files stay in your browser. Upload PNG, JPEG, or WebP under 16 MB.
Your tile preview appears here
Upload a PNG, JPEG, or WebP image to check the repeat edges.
A focused tileability check before production
Use this checker before sending a pattern to print, CSS, Blender, a game engine, or any repeated surface workflow.
Local image check
The first version runs in your browser, so the image is not uploaded and the tool does not use credits.
Repeat preview
View the uploaded image as a single tile, 2x2 repeat, or 3x3 repeat to spot visible joins quickly.
Seam score
Measure left-right, top-bottom, combined, and max border differences using the same seam metric family as the seamless converter.
Seamless pattern checker FAQ
Practical notes for checking whether an image can be used as a repeating pattern.
Not happy with the repeat?
Try our free seamless image tool to repair the image borders and export a cleaner tile.