Cipherdrop End-to-end encrypted

Zero-knowledge file delivery

Encrypt here.
Share anywhere.

Your browser encrypts files before they are stored. The storage service receives only ciphertext; the decryption key stays in the share link fragment.

01 Select 02 Encrypt 03 Share

Choose what to encrypt

Drop individual files here, or use an explicit picker.

Parallel encrypted uploads · no application size limit

Plaintext and keys never reach the storage service.