Sending CAD drawings, technical specifications, or test reports to colleagues and clients is straightforward. Knowing whether they've actually looked at them is where WeTransfer gives you an edge. Preview and download tracking shows you who engaged with your files, when they did it, and how, so you go into every review meeting or sign-off conversation with the full picture.
Keep count of who views your transfer
Engineers share files that carry real weight, whether that's a set of mechanical drawings, a finite element analysis report, or a revised design specification tied to a delivery milestone. WeTransfer separates preview activity from download events in your Transfers panel, so you can see whether a recipient opened a file in the browser before committing to a full download. Enabling download tracking links every access event to a verified email address and a precise timestamp, giving you a concrete audit trail rather than a vague delivery confirmation. For documents that shouldn't circulate beyond a named project team, restricted access lets you lock a transfer to a specific list of email addresses, so sensitive calculations, unreleased proposals, or proprietary designs stay with the right people. Files arrive intact, with no compression or re-encoding, whether you're transferring large CAD assemblies, multi-sheet PDFs, or 3D model files.
Our features are designed to minimize how much of your data we — or anyone else — can access, so you can keep what's yours, yours.
30M+ Transfers sent every month
4.8 App Store / Play Store average rating
12M+ Monthly active users
43K+ Enterprises using WeTransfer daily
Give people simple tools, and they'll do extraordinary things. Ultra-fast file transfers, built-in customization, easier team collaboration. That's the magic of WeTransfer.

Move your ideas forward
Share content with a unique link, give anyone a free pass to send you 200 GB files, and stay in control of transfers — even after you hit send.

Collaboration tools for teams of all sizes
With tools designed to enhance collaboration, get everyone in your team talking and moving as one, without disrupting their workflow.

Share with confidence and security
From password protection to file encryption, WeTransfer has all the built-in security features you need to safeguard your work.
All your questions answered.
Yes. WeTransfer records preview activity and download events as two separate signals in your Transfers panel. A recipient can open CAD drawings, PDFs, or specification sheets directly in the browser without downloading, and you'll see both types of engagement independently, so you know exactly how they interacted with your files.
Before clicking Transfer, open the transfer options and enable download tracking. Once active, every download is tied to a verified email address and an exact timestamp, so you have a reliable record of who accessed your files and when. This is especially useful when you need to confirm receipt ahead of a review milestone or sign-off deadline.
Yes. When you send an email transfer, each recipient's download activity is tracked individually, so you can see a checkmark and timestamp against each email address in your transfer details. You'll know at a glance which team members have engaged with the files and who still needs a nudge before the next project meeting.
Yes. Restricted access lets you specify a list of email addresses before sending. When someone opens the transfer link, they must verify their email, and access is only granted if they match your list. For confidential materials like unreleased tender submissions, proprietary calculations, or pre-approval design revisions, this keeps the files with exactly the right people.
WeTransfer handles any file type without modification, including CAD files, 3D models, large-format PDFs, ZIP archives of drawing sets, and Office documents. Files are sent in their original quality with no compression or re-encoding, so what your recipient opens is exactly what you exported, down to the last layer or annotation.