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DWG STEP
Free online converter

Convert DWG to STEP

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DWG to STEP converterFREE
Drop a .DWG file here
or pick one - we convert it to .STEP and give you the file to download

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert DWG to STEP

  1. Add your .DWG file - drop it in the box above or click to browse.
  2. Convert it to .STEP in a few seconds.
  3. Download your new .STEP file.

What to expect

  • 2D drawings - floor plans, schematics, and drafting sheets - contain no 3D solid bodies and produce an empty .step file.
  • STEP carries 3D solid geometry only; AutoCAD layers, text, dimensions, and block attributes are not transferred to the output.
  • AutoCAD's STEPOUT dialog offers AP203 and AP214 protocols - choose AP214 for best compatibility with modern CAD tools.

Frequently asked questions

Can I convert a 2D DWG floor plan to STEP?
No - a 2D drawing has no 3D solid geometry, so the STEP file will be empty. Use .dxf for 2D geometry exchange instead.
Does Autodesk Fusion's free tier support STEP export?
Yes, the personal/hobby free tier allows .step export as of 2024, though Autodesk has adjusted free-tier limits before - check current terms at autodesk.com.
Why does AutoCAD's STEPOUT produce an empty file?
The model space contains no 3D solid bodies - only 2D entities or surface geometry. Use MASSPROP in AutoCAD to confirm whether solids are present.
Is DXF a better choice than STEP for sharing DWG data?
For 2D geometry, yes - .dxf is lighter and universally supported. For 3D solid bodies going into SolidWorks, Creo, or similar tools, .step is the correct format.
Learn about the formats: .DWG · .STEP
Programs that convert DWG: SolidWorks · Autodesk Inventor · Argon · AutoCAD · CrossManager · IronCAD · TurboCAD · 3ds Max (3D Studio Max)