Convert JT to STP
Possible options how to export JT CAD files to STEP format.
Make STP files online
We can't read JT files yet, so this conversion isn't available. If you can export your work to one of these formats - or others - we'll turn it into STP:
How to convert jt to stp file
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JT format, sometimes labeled as Jupiter Tessellation, is 3D data format used primarily for product visualization, collaboration, CAD data exchange, and sometimes for long-term data retention. It was originally developed by Engineering Animation, Inc. (EAI), and later acquired by Siemens PLM Software. It is proprietary format and unfortunately rarely supported in 3D modeling software, with the exception of solutions from Siemens, most notably Siemens NX or Solid Edge.
STEP on the other hand is a well-supported ISO standard for representation and exchange of product manufacturing information and as such pretty much every 3D modeling tool can work with this format.
How to convert JT format to STEP
It is not hard to find a tool that can visualize JT files (for example with JT2Go from Siemens), but their export is entirely another matter. In this case your options for conversion of JT 3D models to any other format will be always limited, despite the fact that JT is openly-published ISO-standardized format. If you do not have access to Siemens software for export to STEP format or any other exchange format, you have to rely on other 3D modeling software that support JT format either natively, but in majority of cases through 3rd party plugins. This is the case of SolidWorks or some of the Autodesk software solutions, for example Inventor.
Final option how to export 3D models from JT format to STEP format is to use one of the dedicated CAD/3D modeling converters, such as EnSuite, CAD Exchanger or CrossManager. A viable alternative in this case is Autodesk Fusion 360, which works for macOS as well.
JT vs STP: format comparison
How the JT and STP formats compare on the properties that matter most for this conversion.
| Property | .JT JT | .STP STEP (Standard for the Exchange of Product model data) |
|---|---|---|
| Dimensions | 3D | 3D |
| Geometry | Polygon mesh | Both |
| Materials | Limited | Limited |
| Plain-text readable | No | Yes |
| Operating system support | Wide | Wide |
| Typical file size | Small | Medium |
| Open standard | Partly open | Yes |
| Introduced | 1998 | 1994 |
| Developer | Siemens PLM Software | ISO |
Suggested software and links: jt to stp converters
Frequently asked questions
Will converting JT to STP preserve the original CAD geometry?
Only if the JT file contains precise CAD geometry; a visualization-only JT usually exports as faceted geometry or cannot produce a usable STEP solid. Tessellated data cannot recreate the original parametric surfaces and design history.
Are JT assemblies and parts preserved in STP conversion?
Assembly structure and separate parts may be preserved, but this depends on the JT contents and the exporter. Feature history, sketches, constraints, and other native CAD editing information are not preserved in a standard STEP export.
Why does my JT to STP conversion produce a faceted or empty model?
This usually happens because the JT file contains only a display mesh rather than exact B-rep surfaces and solids. A mesh can be exported only as approximate geometry, while some converters cannot create STEP solids from it at all.
Will the STP file be larger than the JT file?
Often it will be larger because STEP stores exchangeable CAD geometry rather than only lightweight visualization data, but the result depends on the model and its JT representation. The exported file may be editable as CAD geometry, but it will not retain the original feature tree.
This record was last reviewed some time ago, so certain details or software may no longer be accurate.
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