UV Unwrap

A model with no UVs, or UVs stretched and overlapping past saving, cannot be textured or baked until it is unwrapped. Doing it by hand means marking seams and flattening island by island in a DCC tool.

This generates a UV0 from scratch. It cuts the mesh into islands, flattens each one with as little stretch as it can, and packs them into a single tile. It reads the file in your browser and never uploads it. Existing UVs are ignored. For a layout you want to keep, repack it instead of starting over.

Will this keep my existing UVs?

No. UV Unwrap replaces UV0 with a fresh layout. If your UVs are usable and you only want them packed tighter, use UV Repacker, which keeps every island exactly as it is.

It reported overlapping islands. What do I do?

The packer rasterises islands onto a grid, and at tight margins two islands can end up sharing an edge texel. Raise the island margin and re-run; the overlapping islands are selected so you can see which ones.

Related: UV Repacker · UV Inspector · Edge Padding

All tools

Edge Padding: Bleed UV island colors outward into empty space so textures stop showing dark seams at lower mip levels. Runs in your browser.

ORM Packer: Combine ambient occlusion, roughness and metallic maps into a single packed RGBA texture, with control over which map goes in which channel.

Tiling Checker: Preview a texture tiled 3x3 with the seams highlighted, plus a half-offset view, so visible edges and obvious repetition show up before the asset ships.

Material Preview: Preview albedo, normal and ORM maps together on a lit sphere or cube, without exporting into Unreal or Unity to check how a material looks.

Height to Normal: Convert a height, bump or displacement map into a tangent space normal map, with adjustable strength and a choice of DirectX or OpenGL output.

Combine Normals: Layer a detail normal map over a base one and keep the detail from both, instead of averaging them into something flatter than either.

Normal Strength: Scale how much a normal map bends the light, without rebaking it. Keeps the map valid instead of breaking it the way a contrast slider would.

Levels: Set the black point, white point, midtones and inversion of a roughness, AO, height or mask texture, with a live preview.

Flip Green: Invert the green channel of a normal map to switch it between DirectX and OpenGL, which fixes normals that light inside out.

Rough ↔ Gloss: Convert a roughness map to glossiness or smoothness and back, for assets moving between engines that expect one or the other.

Renormalize: Restore a normal map after resizing, blurring or compression has weakened it, without changing which way any of it points.

Material from Photo: Generate albedo, height, normal, roughness and AO maps from a single photo, as a starting point you then tune.

Seamless Maker: Turn a photo or texture into one that repeats cleanly, by shifting it by half and blending the mismatched edges away.

AO & Curvature: Get ambient occlusion, curvature and cavity maps out of a normal map, with no high-poly mesh and no baker, for edge wear and dirt masks.

Channel Split: Split a packed ORM, RMA or mask texture back into one grayscale map per channel, exported individually or as a zip.

UV Inspector: Load a GLB, glTF or OBJ and inspect its UVs: connectivity, boundary loops, non-manifold edges and the problems that break texture baking.

UV Repacker: Load a GLB, glTF or OBJ and repack its UV islands into a tighter layout. Same islands and texel density, less wasted texture space.