Password Generator

Generate cryptographically random, strong passwords instantly. Choose length and character types — one click to copy.

Password Length: 16 characters

Character Types

Uppercase (A–Z) Lowercase (a–z) Numbers (0–9) Symbols (!@#$%)

Generated Password

Strength—

Possible Combinations—

📐 Formula

Password entropy (bits) = log₂(pool_size^length). 128+ bits of entropy is considered secure.

Frequently Asked Questions

Security experts recommend at least 16 characters for important accounts. Length is the biggest factor — a 20-character password with only lowercase letters is stronger than a 10-character password with all character types.

Yes — absolutely. If one site is breached, attackers try those credentials everywhere (credential stuffing). Use a password manager like Bitwarden (free) or 1Password to store unique passwords for every account.

Length (16+ characters), randomness (not dictionary words or patterns), character variety (upper, lower, numbers, symbols), and uniqueness (never reused). This generator creates cryptographically random passwords using the Web Crypto API.