Password generator

• Password — random characters from your chosen classes. Densest entropy per char, best for accounts a password manager will autofill.
• Passphrase — random words. Easier to read aloud and type on phones. Default 5 words (~46 bits) is fine for everyday use; 7-9 words for master / disk-encryption passwords.
• PIN — numeric only. Use for device locks; 6 digits is the modern minimum.
• Pronounceable — alternating consonant-vowel syllables for password that's easier to dictate. Lower entropy per char — set the length accordingly.

Entropy bits = length × log2(charset_size). A few benchmarks (assuming a fast attacker at 100 billion guesses/sec):

• < 40 bits — minutes to hours. Don't reuse, change immediately.
• 40-60 bits — days to years against a sophisticated attacker. Fine for low-stakes accounts.
• 60-80 bits — centuries. Strong for any individual account.
• 80+ bits — effectively unbreakable against today's hardware. Use for master / vault keys.

The presets are tuned for common real-world contexts. Pick one to bypass option-tweaking:

• Web account — 16 chars with all classes. Default-safe for any signup.
• Wi-Fi — 20 chars, no ambiguous characters and no symbols (some routers reject them).
• DB-safe — drops symbols that need escaping in SQL strings.
• Vault token — 32 chars, all classes. Use when storing inside a password manager.
• Passphrase 6 — 6-word, dash-separated. Good middle ground for memorability.

Best practice: generate once here, paste straight into your password manager (1Password, Bitwarden, Apple Passwords, browser built-in), and never look at the password again.