Password Generator: Create Strong, Secure Passwords Instantly

Weak passwords remain the leading cause of account breaches. Our free Password Generator creates cryptographically random passwords using your browser’s Web Crypto API, ensuring your passwords are never sent to any server.

Why Generated Passwords Matter

When humans create passwords, we fall into predictable patterns: capital letter at the start, numbers at the end, common words in the middle. Attackers know these patterns. A truly random 16-character password with mixed character types would take billions of years to crack by brute force.

The Math of Password Strength

Character Set	Pool Size	16-char Combinations
Lowercase only	26	4.4 × 10²²
+ Uppercase	52	2.8 × 10²⁷
+ Numbers	62	4.8 × 10²⁸
+ Symbols	95	4.4 × 10³¹

How to Use Our Password Generator

1. Set the length: Default is 16 characters. Use 12+ for standard accounts, 20+ for critical ones
2. Choose character types: Toggle uppercase, lowercase, numbers, and symbols
3. Exclude characters: Optionally exclude ambiguous characters like 0/O or l/1
4. Generate and copy: Click to generate, then copy to clipboard with one click

The strength indicator shows the estimated security level in real-time as you adjust settings.

Best Practices

• Use a unique password for every account
• Store generated passwords in a password manager (1Password, Bitwarden, KeePass)
• Prioritize length over complexity — a 20-character lowercase password is stronger than an 8-character mixed one
• Enable two-factor authentication alongside strong passwords
• Change passwords immediately after a breach notification

Frequently Asked Questions

Is the generator truly random? Yes. It uses crypto.getRandomValues(), a cryptographically secure pseudorandom number generator built into your browser.

How long should my password be? Minimum 12 characters. For critical accounts, use 16-20. For API keys, use 32+.

Should I use a passphrase instead? Passphrases (random words strung together) work well for passwords you must memorize, like your password manager’s master password. For everything else, use generated random passwords.

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Try our free Password Generator to create strong passwords instantly.