Check how strong a password is with entropy estimation, crack-time, and common-pattern detection.
Compute MD5, SHA-1, SHA-256, and SHA-512 hashes of any text.
Encode or decode text to and from Base64.
Encode or decode URL components and query strings.
Hide text inside other text using invisible zero-width Unicode characters.
Everything runs locally in your browser — your password is never sent anywhere or stored.