How to send large CAD files
By the WispFile team · Updated 24 September 2026
To send large CAD files, send them directly from your device with a link: no upload, no size cap, and the exact file arrives, checked piece by piece. Engineering and design files: DWG, STEP, SolidWorks assemblies, Revit models and similar.
Key facts
- Typical size: A few megabytes for a part; gigabytes for assemblies and BIM models.
- CAD files often compress well; zip a project to cut the transfer time..
- No account needed on either side.
- End-to-end encrypted with a 256-bit key only the link carries.
Should you compress CAD files first?
CAD files often compress well; zip a project to cut the transfer time.
Tips for sending cad and 3d files
- Assemblies reference their parts. Send the whole project folder, not the top-level file alone, or it opens with missing components.
- Designs under NDA or export control should not sit in a shared cloud folder. A direct transfer leaves no copy behind.
How to send it with WispFile
- Open wispfile.com (Chrome or Edge verified; Firefox and Safari in testing).
- Add the files or a folder. Nothing is uploaded.
- Share the link, or show the QR code.
- Keep the page open until the other side has everything.
In depth: How to send large files without uploading them.
Related
- How to send large ZIP files
- How to send large PSD files
- How to send large MP4 files
- How to send large MOV files
- How to send large ISO files
- How to send large PDF files
Frequently asked questions
Should I zip CAD files before sending?
CAD files often compress well; zip a project to cut the transfer time.
Is there a size limit for sending CAD files?
Not with a direct transfer: WispFile sets no limit and streams files to disk. Transfers up to 5 GB are verified end to end so far.
Send it directly now
Open WispFile, add your files and share the link. No account, nothing uploaded, nothing stored. Free.
Send files with WispFile