VRM validator and fixer

Drop a VRM or GLB and get a full health report in seconds: humanoid bones, expressions, spring bones, textures, UV integrity, skin weights and triangle budgets. Fix what the report finds and export a clean file. Your model is analysed inside your browser and stays on your device.

Drop a .vrm or .glb hereor click to choose a file

No file handy? Try a sample:

What the VRM validator checks

Humanoid map. All fifteen required bones, parent and child order, T pose arm angle, facing direction and finger coverage.
Expressions. Blink, the five vowel visemes and the emotion presets, with a note for any expression that has no morph or material bind.
Mesh integrity. Triangle and vertex counts, zero area triangles, open edges, missing normals and UVs, and skin weight sums.
UV and texture health. UV seam density and scale consistency catch the mosaic look that appears when a remesh drops the UV map. Texture sizes, formats, memory and unused images are listed too.
Metadata. Name, author and license fields that stores and engines read.

Fixes you can apply

The fixer removes unused textures, compacts the binary, normalises bone weights, fills empty meta fields and resizes large textures. Previews are free, and a 30 minute pass unlocks the file download. Pair it with the Game Asset Exporter to build lower detail versions, and the VRM Animation Preview to test the rig with shared combat clips.