Free SLDPRT Converter & Viewer
Convert SOLIDWORKS .sldprt files to STEP, STL, OBJ and more — and preview them right in your browser. No SOLIDWORKS install required.
Drop your .sldprt file here
or click to browse · max 100 MB
Files are processed securely and never shared. Free while in beta.
Convert from SLDPRT
View and convert SLDPRT files online
A SLDPRT file is a 3D part created in SOLIDWORKS. Because it is a proprietary computer file, you normally need SOLIDWORKS or the SOLIDWORKS eDrawings viewer to open it. This free online file viewer and converter lets you view a SLDPRT file in seconds and convert SLDPRT to the format you need — whether that is a STEP file for another CAD (computer-aided design) program such as Autodesk Fusion 360, an STL for 3D printing, or an OBJ/GLB for 3D graphics and rendering.
The most common SLDPRT conversions
The two most requested conversions are SLDPRT to STEP (a neutral CAD format almost every program can open) and SLDPRT to STL (the standard format for 3D printing). Pick your target above, or choose another format from the list.
Frequently asked questions
- How do I open a SLDPRT file without SolidWorks?
- Upload your .sldprt file above and it opens instantly in your browser — no SolidWorks license or install needed. You can rotate and inspect the 3D model, or convert it to another format.
- What can I convert a SLDPRT file to?
- You can convert SLDPRT to neutral CAD formats like STEP and STP, mesh formats like STL, OBJ and GLB for 3D printing or rendering, and drawing formats like DWG and DXF.
- Is this SLDPRT converter free?
- Yes. Viewing and converting SLDPRT files is completely free while the tool is in beta. No account or credit card required.
- Is this a free alternative to eDrawings?
- Yes. SOLIDWORKS eDrawings is the usual free viewer for .sldprt files, but it requires a download and install. This online SLDPRT file viewer runs in your browser with nothing to install, and also converts to other CAD formats.
- Can I open the converted file in Autodesk Fusion 360 or Inventor?
- Yes. Convert your SLDPRT to STEP (ISO 10303-21) — a neutral CAD format that Autodesk Fusion 360, Inventor, FreeCAD, Onshape and most other CAD programs can open directly.
- Is it safe to upload my files?
- Files are processed securely over an encrypted connection and are not shared. They are only used to perform the conversion you request.