Checking seams and arranging a sheet is easier with a mouse and a wide stage. Everything still runs right here on your device.
Free on your device · tile generation optional (credits)
Drop tile images (PNG, JPEG or WebP, several at once), pick from your engine images, or generate a new seamless tile. Select a tile and the 3×3 view repeats it while the Offset view slides it by half, so the wrap edges cross in the middle where seams are easy to spot. Fix seams blends the edges over the blend width you set, and Hold to compare shows the tile before the fix.
Sheet & export resamples every tile in the tray to one size, packs them left-to-right and top-to-bottom with your spacing and margin, and downloads the sheet PNG, a Tiled .tsx tileset, or both in a zip. Seam checks, fixes and export are free and stay in your browser; only Generate a seamless tile uses credits.
Load it and look at the Offset view — a seam shows as a cross in the middle — then press Fix seams. Raise the blend width for softer transitions and compare before and after.
The sheet comes with a Tiled .tsx tileset that records the tile size, spacing and margin, for Tiled and any engine or tool that reads Tiled tilesets.
Yes. Everything except generating a new tile runs in your browser at no cost.