SOURCE-BACKED COMPARISON
STL vs OBJ: 3D Format Workflow Comparison
STL and OBJ support different 3D exchange workflows. Compare only the reviewed facts below, then validate units, companion assets and downstream requirements in your target application.
Reviewed facts
| Property | STL | OBJ |
|---|---|---|
| MIME type | Not reviewed | model/obj |
| Encoding | ASCII or binary | Line-oriented plain text; character encoding is not declared by the filename |
| Container | Not reviewed | Not applicable |
| Compression / coding | Not reviewed | Not inherent to the format |
| Signature | Not reviewed | No registered magic number |
“Not reviewed” stays visible when the catalog does not yet contain a sourced fact.