Password Generator
Generate strong, secure random passwords with custom settings
Strength
Settings
16
8
64
Exclude ambiguous characters (0O1lI)
Number of passwords
Why Use a Password Generator?
Weak passwords are the leading cause of data breaches. Humans tend to create predictable passwords based on words, dates, and simple patterns. A password generator creates truly random, cryptographically secure passwords that are virtually impossible to guess or brute-force.
This tool uses the Web Crypto API (crypto.getRandomValues) to generate passwords with true randomness, not the weaker Math.random().
Password Strength Guide
| Strength | Length | Time to Crack |
|---|---|---|
| Weak | 8 chars (lowercase) | ~5 seconds |
| Fair | 10 chars (mixed case) | ~1 month |
| Strong | 14 chars (all types) | ~200 years |
| Very Strong | 20+ chars (all types) | ~millions of years |
Frequently Asked Questions
Is this password generator safe to use?
Yes. Passwords are generated entirely in your browser using the Web Crypto API. No data is sent to any server. The passwords never leave your device.
How long should my password be?
We recommend at least 16 characters with a mix of uppercase, lowercase, numbers, and symbols. Longer passwords are exponentially harder to crack. For high-security accounts, use 20+ characters.
What are ambiguous characters?
Characters like
0 (zero) and O (letter O), 1 (one) and l (lowercase L) / I (uppercase I) look similar in many fonts. Excluding them helps when you need to read or type the password manually.Should I use a password manager?
Absolutely. A password manager stores your unique, strong passwords securely so you only need to remember one master password. Popular options include Bitwarden, 1Password, and KeePass.