Is the file really not uploaded anywhere?

Correct. Your computer serves it directly. On the same network it never touches the internet at all.

What happens when I close the app?

The link stops working. Nothing was stored anywhere, so there is nothing left to clean up.

Internet transfers are encrypted with AES-256-GCM before the file leaves your machine, and the key travels in the part of the link that browsers never send to a server.

Send files without uploading them first

The upload is the part you are actually waiting for.

Cloud services copy your file to a server, then copy it back down to the recipient. You pay the wait twice and a stranger holds a copy in between. ZenShare skips the middle: the recipient's browser downloads directly from your computer, so the transfer starts the moment you send the link.

Where the time actually goes

Home and mobile connections are asymmetric. Download is usually many times faster than upload, and a cloud transfer begins with an upload, which is the slow direction. The recipient cannot start until it finishes.

Sending directly removes that first leg, so the only transfer that happens is the one you wanted.

What this changes

It starts immediately. No progress bar to sit through before you can even send the link.
No size limit, because there is no storage quota to fit inside.
No copy left behind. Stop sharing and the link stops working, because the file was never anywhere else.

What you give up

Being honest about the trade: your computer has to be on and the app open while they download. Cloud storage holds the file so both people are never required at once. If the other person is asleep in another timezone, that is the better tool. If they are reachable now, this is faster and costs nothing.

Try it

Free, no account, and the person receiving the file installs nothing.

Download Zen-Share

Or send one straight from your browser, with nothing installed on either side.

Common questions

Is the file really not uploaded anywhere?: Correct. Your computer serves it directly. On the same network it never touches the internet at all.
What happens when I close the app?: The link stops working. Nothing was stored anywhere, so there is nothing left to clean up.
Is it encrypted?: Internet transfers are encrypted with AES-256-GCM before the file leaves your machine, and the key travels in the part of the link that browsers never send to a server.