Cryptography

Password/Passphrase Generator

Generate passwords or passphrases with CSPRNG-backed unbiased selection, character groups, exclusions, and a live entropy estimate.

Runs entirely in your browser; input is not sent to our servers.

Messages, keys, passwords, plaintext, ciphertext, and files are never stored in localStorage, history, or analytics payloads.

Secure

Style

Length / word count

Password: 4–256 characters. Passphrase: 2–24 words (try 6).

Character groups

Exclude characters

Passphrase separator

Generated value

Estimated entropy (bits)

Sources

More tools in Cryptography and popular picks.