webtech360-part-preview.sldprt
See how SolidWorks (SLDPRT/SLDASM/SLDDRW) works with this ready-made sample. Open it in the viewer or download the original SLDPRT file for your own testing.
Preview SolidWorks SLDPRT, SLDASM and SLDDRW files online
SLDPRT, SLDASM and SLDDRW are native SolidWorks part, assembly and drawing documents. This privacy-first tool attempts to extract an embedded preview image for rapid identification without uploading the file.
Preview / partial support — The page shows the supported preview or contents and clearly identifies what is not rendered.
Drop a SLDPRT file to open it
or click to choose — everything stays on your device
Choose file🔒 100% private — files never leave your browser
Sample files for SolidWorks (SLDPRT/SLDASM/SLDDRW)
Choose an extension below to open a ready-made sample in the viewer or download it for your own testing.
webtech360-sldasm-sample.sldasm
See how SolidWorks (SLDPRT/SLDASM/SLDDRW) works with this ready-made sample. Open it in the viewer or download the original SLDASM file for your own testing.
webtech360-slddrw-sample.slddrw
See how SolidWorks (SLDPRT/SLDASM/SLDDRW) works with this ready-made sample. Open it in the viewer or download the original SLDDRW file for your own testing.
Or turn SLDPRT into an image — snapshot the preview, add arrows or notes, and download a PNG.
What is a SLDPRT file?
SLDPRT, SLDASM and SLDDRW are native SolidWorks part, assembly and drawing documents. This privacy-first tool attempts to extract an embedded preview image for rapid identification without uploading the file. The .SLDPRT extension identifies a SolidWorks document file, which is served with the application/octet-stream media type. The page shows the supported preview or contents and clearly identifies what is not rendered.
Native SolidWorks documents contain proprietary feature, assembly or drawing data and cannot be faithfully reconstructed by a lightweight static website. Many files also carry a thumbnail or preview generated when they were saved. This viewer searches for that embedded image and reports file information, offering a safe first look rather than claiming full CAD support.
Besides this free online viewer, you can open SolidWorks (SLDPRT/SLDASM/SLDDRW) files in desktop apps such as SolidWorks, eDrawings Viewer — but here all you need is a web browser.
Quick facts
| Format | SolidWorks (SLDPRT/SLDASM/SLDDRW) — SolidWorks document |
|---|---|
| File extensions | .sldprt .sldasm .slddrw |
| MIME type | application/octet-stream |
| Developer | Dassault Systèmes |
| Category | 3D, CAD & GIS |
| Also opens in | SolidWorks, eDrawings Viewer |
Common uses
- Identify a part or drawing before opening SolidWorks
- Triage email attachments on a phone or shared computer
- Check whether a document includes a usable saved preview
What this browser preview can and cannot show
This is preview extraction only. It does not render parametric features, bodies, configurations, assembly mates, drawing sheets or measurements. Some files contain no preview, an outdated preview or an image that does not reflect the active configuration.
Tips for a reliable preview
- Save the document in SolidWorks with thumbnails enabled
- Use eDrawings, STEP or 3D PDF when recipients need dependable viewing
- Open the original in SolidWorks for every engineering decision
How to open a SLDPRT file online
- Click Choose file above, or drag your SLDPRT file onto the box.
- The right viewer loads automatically and renders your file.
- Read, scroll or page through it. To open a different file, choose Open another file.
100% private — files never leave your browser.
Libraries used to render SLDPRT in the browser
This viewer is built entirely with open-source JavaScript that runs in your browser:
Frequently asked questions
What is a .SLDPRT file?
A .SLDPRT file is a SolidWorks document, identified by the application/octet-stream media type. You can open and read it instantly in the viewer above without installing anything.
What programs open SLDPRT files?
On the desktop, SLDPRT files typically open in SolidWorks, eDrawings Viewer. Online, this page opens them in any modern browser — nothing to download.
Why does a SolidWorks file show no preview?
The document may not contain an embedded image, or its internal storage may use an unsupported layout. The original geometry is not decoded as a fallback.
How do I convert SLDPRT to an image?
Use Snapshot to capture the SLDPRT preview, optionally add arrows, text or highlights, then download it as a PNG image.
Is it safe to open my SLDPRT file here?
Yes. The file is read and rendered entirely by JavaScript inside your own browser. It is never uploaded to a server, so nothing leaves your device.
Do I need to install anything to view a SLDPRT file?
No. There is nothing to install and no account to create. Open the page, drop your file, and it displays instantly.
Does it work on my phone or iPad?
Yes. The viewer is fully responsive and works in modern mobile and tablet browsers such as Safari and Chrome.
Is there a file size limit?
There is no hard limit, but very large files depend on your device’s memory. Big files are processed in the background so the page stays responsive.