SecretFile for one-time downloads

Yes. Files are encrypted with AES-256 directly in your browser before any data is sent to the server. The decryption key is embedded in the link fragment, which is never transmitted to the server. This means the server stores only ciphertext and has no way to read your files.

Any file type is accepted - documents, archives, images, executables, or anything else. You can share up to 20 files at once with a total size of 50 MB per share. Clipboard paste support depends on what file types the browser exposes from the clipboard, which varies by operating system.

Files are stored until the link is opened or until the expiration time you set in Options is reached, whichever comes first. The default expiration is 3 days for unviewed links. Once the recipient opens the link the encrypted files are permanently deleted from the server.

No. SecretFile uses one-time delivery. After the link is opened and the files are decrypted the encrypted data is deleted from the server and the link stops working. If you need to share the same files again you will need to create a new share.

Yes. In the Options panel before creating the link you can set a password. The recipient must enter the correct password before the files are decrypted and made available for download. This adds a second layer of protection on top of the AES-256 encryption, which is useful if you need to send the link over an insecure channel.

If the link is never opened, the encrypted files are automatically deleted when the expiration timer runs out. The default is 3 days. You can set a shorter or longer timer in Options before creating the link. Available options range from 1 hour to 30 days. After expiry the link stops working and the files are permanently deleted.

No. SecretFile is designed around anonymity and zero-knowledge principles. The sender has no dashboard, no notification, and no visibility into whether the link was opened. Once the link is created and shared, the sender has no further connection to the share. This is intentional - the service does not track access events.

Yes. SecretFile is operated by RapidFoundry LTD, a company based in the European Union. Files are stored as encrypted ciphertext only, with no personally identifiable information attached. Because the service uses zero-knowledge architecture, SecretFile processes no personal data contained within the files themselves. Full details are available in the privacy policy.

Yes, SecretFile is completely free. No account, subscription, or payment is required to upload or download files. All features including AES-256 encryption, one-time delivery, password protection, and expiration timers are available at no cost.