How a File Becomes a Link

The Short Answer

Sending a large file as a link feels like magic, but it is just three plain steps: the file is sealed, uploaded and turned into an address that only the right person can open. Knowing what happens under the surface is the difference between hoping a transfer is private and knowing it is. You can send a file up to 5GB free and watch each of these steps happen.

Step One: The File Is Sealed

Before anything leaves your device, the file is encrypted. Think of it as locking the contents in a box that only the transfer can open. Even as it travels and while it sits in storage, the file stays in that locked form, so anyone who is not meant to see it simply cannot read it. This is what people mean by encrypted in transit and at rest, and it is the part that makes a link safe to share.

!A file shown locking into a sealed, shareable link on a quiet desk

Step Two: The Link, Not the File, Is What You Send

Once the sealed file is uploaded, you are handed a link. That link is the whole point. It means the heavy file lives in one place and the recipient pulls it down when they are ready, on any device, with nothing to install. You can send the link by email or paste it into a message, and you can protect it further with a password when the contents are sensitive.

Step Three: It Expires, on Purpose

A good transfer does not last forever. You set a window, a few days or a week, and when it passes the link stops working and the file is removed. This is a feature, not a limitation. Old links are how files quietly leak months after a job is done, so a link that expires is a link you do not have to remember to clean up.

Seeing It Arrive

The last piece is knowing it landed. Download tracking shows you when the link has been opened, so you are never left guessing. For work that matters, that small signal closes the loop: sealed, sent, and confirmed received.

What We Keep

Almost nothing, and only for as long as the link lives. Files are encrypted, stored only until they expire, and never used to train anything. The goal is a transfer you can forget about the moment it is done, because it has already taken care of itself.

Ready to see it work? Send a file free, and watch it become a link.