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| Name | JT Open CAD File | HOOPS Stream Format |
| File extension | .jt | .hsf |
| Original software | ||
| Binary | ■ | ■ |
| ASCII | ||
| Polygonal | ■ | ■ |
| NURBS | ■ | |
| Solids | ||
| Smoothing groups | ■ | ■ |
| Textures, materials | ■ | |
| Developer/Owner | Siemens | Tech Soft 3D |
| Description | ||
| Specification | www.jtopen.com | Open HSF doc |
| Format features | Open lightweight format of three-dimensional data | One attempt to create « universal » 3D-format for publishing CAD-models. To date, work on improving it stopped |
| Viewing software | JT2Go (free), eDrawings RapidFire Lite 2011 (free) | Hoops Publish |