STEP Converter

Convert 3D CAD models (STEP) online for free


Drop or upload your .STEP file
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How to convert your STEP file

  1. Click the "Select File" button above, and choose your STEP file.
  2. You'll see a preview.
  3. Click the "Convert file to..." button to save your file in the format you want.

Convert STEP to another file type

The converter easily converts your STEP 3D models to various formats - free and online. No SolidWorks or or other 3D software needed.

  • STEP to STL
  • STEP to OBJ
  • STEP to FBX
  • STEP to GLB
  • STEP to GLTF
  • STEP to PLY
  • STEP to ASSBIN
  • STEP to X3D
  • STEP to 3MF
  • STEP to X
  • STEP to STP
  • STEP to 3DS

Convert a file to STEP

To convert other file formats to the "CAD Exchange Format" file type, you need software like SolidWorks or a similar tool.


About STEP files

The .STEP file is an ISO 10303 standardized 3D CAD model format used to exchange data between different engineering and modeling programs. It is widely supported by professional tools like SolidWorks, Autodesk AutoCAD, and FreeCAD.

However, .STEP files have distinct disadvantages for everyday users. They cannot be previewed natively in Windows, macOS, or standard web browsers. Opening them requires specialized, heavy CAD software that often costs thousands of dollars in subscription fees. Furthermore, because .STEP files store exact mathematical definitions of curves and surfaces (NURBS) in a plain ASCII text format, complex assembly files often exceed 100MB and consume significant system memory to render.

To share or use these 3D models practically, you must convert them. For 3D printing, convert to STL or 3MF. For web-based rendering, AR, or game engines, convert to OBJ, GLTF, or GLB. For client reviews, convert to a 3D PDF. Drag and drop your file to analyze and convert it - free, online, and without installing software on convert.guru.

Use Convert.Guru to open and convert your STEP file.

Users also converted STP, SLDPRT, 3D, STL, SLDASM, STE, F3D, X_T, IPT, SAT, ZIP, FCSTD and PRT files.


FAQ

If you want to convert STEP file to DWG, KM, SLDPRT, PDF, DXF, DGN, RVT or RFA, you can use SolidWorks or similar software from the "3D Model Data Exchange" category. In the File menu, look for Save As… or Export….

To convert SLDASM, DGN, PRT, IAM, X_B, CATPRODUCT, SLDPRT, RVT, ASM, DWG, CATPART or DXF files to STEP, try SolidWorks or another comparable tool in the "3D Model Data Exchange" category.



The STEP Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our STEP converter.