07 Jul How to Convert SLDPRT to STEP File Without SolidWorks (Free Tools Included)
SolidWorks is a powerful 3D CAD tool, but what if you receive an .sldprt file and don’t have access to SolidWorks? Whether you’re a designer, engineer, or manufacturer, converting SLDPRT to a universally accepted .step or .stp format is often critical for collaboration. In this guide, we’ll show you free and professional ways to convert SLDPRT files to STEP format, without SolidWorks.
What Is an SLDPRT File?
SLDPRT is the native part file format used by SolidWorks, containing 3D part geometry, features, and metadata. These files are not readable in most CAD platforms without using SolidWorks or a compatible viewer.
Why Convert SLDPRT to STEP?
The STEP file format (.step or .stp) is a neutral, vendor-independent format used in almost all 3D CAD systems (AutoCAD, Fusion 360, CATIA, etc.). Converting to STEP enables:
- Cross-software collaboration
- Easier file sharing with vendors
- Use in CAM or simulation tools
- Long-term archiving
Free Tools to Convert SLDPRT to STEP Without SolidWorks
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FreeCAD (Open-Source CAD Software)
Pros:
- Completely free and open-source
- Can import .sldprt and export .step
Steps to use:
- Install FreeCAD
- Go to File > Open, select .sldprt file
- Then choose File > Export, and select STEP with AP203/AP214
✅ Note: Not all complex features may import cleanly—best for basic parts.
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eDrawings Viewer (Limited Export Options)
While eDrawings (from Dassault Systèmes) doesn’t allow direct STEP export, it’s useful for viewing .sldprt files and checking geometry before using a separate tool for conversion.
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Online File Converters (Use With Caution)
Some websites like CAD-Exchanger, AnyConv, or Zamzar offer online .sldprt to .step conversion, but:
- They may have file size limits
- Privacy/security may be a concern for proprietary files
- Quality of conversion is not always guaranteed
What to Watch Out for During Conversion
- Loss of feature history
- Broken assemblies (when converting .sldasm with .sldprt)
- File corruption from low-quality converters
- Missing appearance or materials
Always check the resulting .step file in a reliable CAD viewer or validator tool before using it for manufacturing.
Paid or Professional Tools (Without Full SolidWorks License)
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Autodesk Fusion 360 (Free for Hobby Use)
Fusion 360 can import .sldprt and export as .STEP:
- Free for personal use or startups
- Great for mechanical and manufacturing design
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Request a CAD Conversion Service
For complex models or bulk conversions, outsourcing to a CAD conversion specialist like ALOR CAD Services ensures:
- 100% geometry fidelity
- Batch conversion support
- NDA-backed privacy for IP-sensitive projects
Need help converting SolidWorks files? Contact us for fast and affordable SLDPRT to STEP conversion services.
Conclusion
You don’t need a full SolidWorks license just to convert an .sldprt to .step. With free tools like FreeCAD or services like ALOR CAD Services, it’s easy to convert your files securely and accurately. Whether you’re working solo or for a large engineering firm, these methods will keep your workflow smooth and compatible.
We provide U.S. wide CAD file conversion support with fast turnaround, typically within 24 to 48 hours. Whether you’re in Texas, California, or Massachusetts, our team is ready to help.