How to Send Files Online Without Signing Up for Anything
3 min read · Updated 2026-09-12
Almost every file-sharing service asks for an email address before it will move a single byte. That is a reasonable trade for long-term storage and a terrible one when you just need a document on another device right now.
What 'no signup' should actually mean
No account creation, no email address, and no verification step before the transfer starts.
No app install on either the sending or the receiving device.
A short, human-readable handoff — something you can say out loud rather than a long URL you have to copy exactly.
Automatic expiry, so files you sent once do not accumulate in an account you never log into again.
How a passphrase-based transfer works
You upload your files in the browser. The service stores them privately and generates a random word passphrase.
Whoever enters that passphrase first downloads the batch, and the transfer is then deleted. That is the entire mental model — the passphrase is the address and the key at once, and it is good for exactly one collection.
Because there is no account, there is no profile, no history, and nothing to delete later: expiry handles cleanup for you.
The trade-offs to know about
Temporary by design: single-use without an account, and gone within 24 hours either way. Great for handoffs, wrong for backups.
Size limits: 25MB per file and 20 files per transfer as a guest, or 50MB and 50 files with a free account. Video and audio are not supported file types, so media needs a different tool.
One collection only: if you need several people to download the same batch, that needs a free account. As a guest, the first download ends the transfer.
Anyone with the passphrase can download, so treat the passphrase the way you would treat the file itself.