A Smash alternative with the encryption on your side
Smash lets you send large files without a size ceiling. ShieldFive Send trades unlimited size (for now) for something Smash doesn’t give you: end-to-end encryption where the key never touches the server.
If your priority is that the people running the transfer only ever hold ciphertext, Send is built for exactly that — the bytes and the filenames are sealed on your device before upload.
Size for confidentiality — the honest trade
Smash wins on size; a Send transfer is currently a few hundred MB, because each file is encrypted whole in your browser’s memory. What you get for that ceiling is a transfer the service holds only as ciphertext, without the key. Streaming for multi-GB sends is a planned follow-up.
The filename is data too
It isn’t only the bytes. The filename and any message you attach are encrypted on your device as well, so “Q3-layoffs-final.xlsx” is not sitting in our metadata for anyone to read.
EU-hosted, ciphertext only
Encrypted blobs are stored in the EU, and nothing readable is ever written to our servers. A breach of our storage yields files whose keys were never there to steal.
It goes away on its own
A link stops working after the time you choose and after its download limit is hit. Once a transfer expires or you revoke it, the ciphertext is queued for deletion from storage rather than lingering in an archive.
Send a file in seconds
Drop it, share the link, and it’s encrypted before it leaves your device — no account required.
Send files encryptedQuestions
- Can the service open my files like a normal transfer tool?
- No. The files and their names are encrypted in your browser with a key that stays in the link fragment. We receive and store only ciphertext.
- Where are the files stored?
- Ciphertext is stored in the EU. It is deleted after the transfer expires or reaches its download limit.