If you fill these in, they are used verbatim and the passphrase derivation is ignored.
Your key pairs generated & stored locally (Web Crypto)
Imported public keys someone else's key, to encrypt for them
Encrypt / Decrypt
Hash / HMAC 100% local — files are never uploaded, streamed in chunks
Saved symmetric results stored locally in this browser
Saved from the Symmetric tab with “Save to vault”. Load one to send it back to the Symmetric tab (ready to decrypt).
Profiles separate sets of keys & vault, stored locally
Master password optional — encrypts the active profile's private keys at rest
Export / import profile your keys + vault as a file
Stored locally
On iPhone/iPad: open in Safari, tap Share ⬆ → Add to Home Screen to install.