Both the JT (.jt) and STEP (.stp, .step) CAD formats are well supported in various CAD/engineering software and as such it should be fairly easy to find a CAD software or CAD conversion/translation system that would be capable of JT to STEP conversion.
Convert JT Open CAD 3D model format to ISO-10303 STEP product data.
We found 9 software records in the database related to .jt to .step file format conversion.
Microsoft Windows software - convert jt to step on Windows
A PLM/CAD/CAM/CAE software suite
Convert from jt file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned jt to step. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Autodesk Inventor is modeling application used to create 3D digital prototypes.
A CAD converter with huge format support
A widely-used 3D animation application from Autodesk
A feature rich 3D CAD software by Siemens
A dedicated CAD converter
Creo Parametric (formerly known as Pro/ENGINEER) is a complete 3D CAD software solution by PTC.
A CAD visualizaton, analyzation and translating system