Reveal the 80-byte STL header, GLB JSON chunk, software origin, vertex/face stats, and authoring tool from any 3D file. Browser-based, zero upload.
Upload an STL or GLB file
We parse the header bytes (STL) or JSON chunk (GLB) and decode metadata
Browse stats: format, header text, vertex/face count, generator software
0 bytes uploaded. Mesh Metadata Inspector runs entirely in your browser using three.js and WebGL. Your meshes never leave your device.
The first 80 bytes of a binary STL are an ASCII header — typically populated with the slicer or CAD tool name. Some files include build dates, author IDs, or a copyright string.
Not from this tool — it's read-only. To strip identifying metadata before sharing, run the result through a binary editor or simply round-trip via STL ASCII → Binary.
OBJ has no header convention. We extract the comment lines (#) at the top, which usually indicate the source software (e.g. "# Blender 4.0").
Get exact vertex, edge, and face counts for STL, OBJ, and GLB files. Useful for performance budgeting in games, AR, and 3D printing.
Open toolCompute the X/Y/Z bounding box of any STL, OBJ, or GLB mesh. Get exact print dimensions in mm — useful for fitting models to your printer bed.
Open toolConvert binary STL files to human-readable ASCII STL. Diff models, version-control geometry, or debug malformed meshes. Browser-based.
Open tool