JT files need usable B-Rep geometry
A JT solid sample retained one solid and its 40 × 30 × 20 mm dimensions after STEP conversion. This does not validate tessellation-only JT or every JT version. Files without usable geometry are rejected.
CADProps · CAD tools
Online JT Solid Viewer & STEP Conversion
Open JT files with readable solid geometry online and convert to STEP. Inspect dimensions and properties; mesh-only JT is not validated.
No account required
Temporary workspaceCAD processingBefore you use the result
Know what you are looking at.
Open JT files with readable solid geometry online and convert to STEP. Inspect dimensions and properties; mesh-only JT is not validated.
Geometry and measurement limits
Converted STEP geometry is independently read back before publishing. Source feature trees are not restored. Properties describe loaded geometry; mass requires your confirmed density.
Download from the workspace
Use the Convert toolbar button to choose STEP and download the result. Preview and download availability depend on readable geometry, file limits and the source version.
Questions about this task
Know the limits.
Which files can I process?
View STEP, IGES, SolidWorks, Siemens NX / UG NX, Inventor, CATIA CATPart/CATProduct, Parasolid X_T, ACIS SAT, JT with readable solids, STL, OBJ, 3MF and static GLB/glTF. ZIP packages retain assembly references. Missing parts show warnings. CATIA CGR/3DXML, X_B, SAB and DWG remain unverified or unavailable.
Are files uploaded?
Yes. Selecting or dropping files uploads and processes them immediately in every tool. Files are processed temporarily on this server. The workspace displays the configured retention time. Delete in the file menu permanently removes your files; closing a view does not.
Do I need an account?
No. Your temporary workspace uses a browser session cookie. There is no account, subscription or permanent file library.
How are properties calculated?
STEP/IGES and converted native CAD use B-Rep geometry; mesh properties are approximate. Incomplete assembly properties cover loaded components only. Mass uses your chosen density.
Related reading
