Check the UV map of a 3D model
A checker texture shows stretching, distortion and mirrored islands at a glance. Open the 2D layout to see how each mesh uses the 0–1 texture space.
Private
Files are processed on your device and never sent to a server.
Free, no account
No sign-up, no watermark, no daily limits.
Nothing to install
Works in Chrome, Edge, Firefox and Safari on desktop and mobile.
How it works
- 01
Drop a model that has UV coordinates.
- 02
The checker is applied automatically. Squares should look square and even in size across the surface.
- 03
In Diagnostics pick a mesh to see its UV layout.
Questions
What do stretched squares mean?+
The UV island is scaled unevenly there. Textures will look blurry or smeared in those areas: unwrap again or give that part more texture space.
Why is the UV layout empty?+
The mesh has no UV coordinates. STL files and point clouds never have them; other meshes may need to be unwrapped in a 3D editor.
Does it show tiled or UDIM UVs?+
Coordinates outside 0–1 are drawn outside the square and cut off. The checker repeats across tiles on the model.
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