Move heavy engineering files without the friction
CAD assemblies, 3D models, simulation outputs, and technical drawings are built for precision, not email attachments. WeTransfer sends them from your browser to any collaborator or client, at full fidelity, with no compression and nothing for the recipient to install.
No file is too big
Engineering projects generate some of the heaviest files in any industry, and the standard ways of moving them, email attachments, USB drives, and shared drives with access issues, slow everyone down. WeTransfer handles CAD files, 3D models, FEA results, ZIP archives, and large PDFs directly from the browser, sending each file exactly as it was exported with no re-encoding or quality loss. Every transfer produces a unique download link you can paste into a project management thread, a client email, or a vendor message, and the person receiving it never needs a WeTransfer account to download. When a design is confidential or a drawing package is meant for a single contractor, password protection and restricted access let you control who can open the transfer without any extra setup. For engineering teams handling large deliverable sets or ongoing project archives, WeTransfer Ultimate removes the per-transfer size ceiling and gives you full control over how long files stay available.
What makes WeTransfer different
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
Everything you need
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.
FAQs
All your questions answered.
No. WeTransfer sends every file in its original format without any compression, re-encoding, or modification. Your STEP files, DWG assemblies, FEA exports, and point cloud data arrive at the other end byte-for-byte identical to what left your machine, so there is no risk of geometry errors or corrupted models introduced in transit.
Yes. WeTransfer supports folder uploads, and recipients download the files with the original folder hierarchy preserved. For engineering teams working with structured project directories, referenced assemblies, or drawing packages that depend on relative file paths, this means the folder lands exactly as it was organized on your drive.
You have two options for tighter access control. You can lock a transfer with a password and share it separately with your recipient, so anyone who stumbles on the link cannot open the files. Alternatively, you can restrict access to specific email addresses, meaning only the people on your list can download after verifying their identity. Both options are available on all plans.
WeTransfer is file-type agnostic and works with anything you can upload, including CAD formats, 3D model files, large PDFs, ZIP archives, Office documents, and simulation output files. There is no list of blocked extensions for professional formats, so you can send the files your workflow produces without converting or repackaging them first.
Free accounts support up to 3 GB per transfer, which covers many individual drawing packages and smaller model files. For heavier deliverables, large simulation datasets, or full project archives, WeTransfer Ultimate removes the per-transfer size cap entirely and gives you 2 TB of storage with transfers that never expire unless you delete them. Engineering teams needing shared access, centralized billing, and up to 5 TB of pooled storage can move to the Teams plan instead.