Both STL and STEP are fairly common CAD/3D model formats and well supported in many programs so it should be not hard to find one that can perform STL to STP conversion. Below are few choices for this type of conversion.
Convert Stereolithography CAD file to ISO-10303 STEP product data.
We found 17 software records in the database related to .stl to .stp file format conversion.
Microsoft Windows software - convert stl to stp on Windows
A PLM/CAD/CAM/CAE software suite
Convert from stl file format
|Yes, CATIA supports stp file conversion as a target file type.||Yes||Yes||stp editor||No||No||Yes||No|
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 stl to stp. 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 2D and 3D CAD construction software
3D viewer and converter with huge file type support
A 3D model converter
Creo Parametric (formerly known as Pro/ENGINEER) is a complete 3D CAD software solution by PTC.
A family of 2D/3D CAD software products for Windows
A widely-used 3D animation application from Autodesk
Apple macOS / Mac OS X software - convert stl to stp on OS X
A 2D/3D CAD software for OS X
Multiplatform software - convert stl to stp on any platform
An open source multiplatform 3D CAD/MCAD/CAx/CAE/PLM modeler