Texture Forge

Load a photo of a wall, a floor, a pavement. Click the four corners of the flat surface. Texture Forge removes the perspective, gives you a straight rectangle at the size you ask for, wraps it so the edges meet, and then tells you with a number whether the seam shows.

The part other tools skip

Most seamless tools say "done". This one ranks your wrap edge against every other column and row boundary inside your own texture, and reports how many grey levels it stands above a normal edge of that texture. Under two levels you will not see it. Over six you will.

That distinction matters. A seam is not simply a big difference: a brick wall has hard edges everywhere, and a tile boundary that lands on one is fine. What you want to know is whether the boundary is an edge your texture would not otherwise have. A percentile on its own does not answer that either, because on a flat texture half a grey level lands in the 99th percentile and stays invisible. Both numbers are shown.

Measured on this build, 21 September 2026

• Perspective rectify: the four corners you click land on the four corners of the output to within 1.4e-14 pixels.
• A 512x512 test texture, wrap edges before: +36.7 and +20.2 grey levels above a normal edge of that texture. After: +0.5 and -0.03.
• On the assembled 3x3 sheet, both internal joins measured 2.82 against a median edge of 2.31, an excess of half a grey level out of 255.

How it runs

One HTML file, about 8 kB. You download it and open it in any modern browser; there is no install and no version to play on this page. Nothing is uploaded, nothing is called home, and it keeps working with the network off. Windows, macOS, Linux, or a tablet.

What it will not do, said before you pay

The blend is a half-offset cross fade. It suits surfaces with even grain: stone, plaster, soil, fabric, bark, rust, concrete. It is the wrong tool for a texture with one large unique feature, a face, a sign, a single wide crack. Those ghost, and the seam report will not warn you, because the ghosting is not at the edge. No normal maps, no PBR channels, no batch mode. One image at a time.

Licence

You buy a copy. Use it for anything, commercial work included, on as many machines as you like, and the textures you make with it are yours. Do not resell or redistribute the tool itself.

AI disclosure

The code of this tool was written by a language model, and the disclosure field says so. The numbers quoted above were measured in a browser against the exact build you get.