Generate secure, random passwords. Customize length, characters, and get strength analysis. Free password generator with entropy calculation.
Strength
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Random characters - most secure
Character Pool Size
88
Possible Combinations
1.3e+16
Uppercase: ABCDEFGHIJKLMNOPQRSTUVWXYZ
Lowercase: abcdefghijklmnopqrstuvwxyz
Numbers: 0123456789
Symbols: !@#$%^&*()_+-=[]{}|;:,.<>?
Strength
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A strong password should be at least 12-16 characters with a mix of uppercase, lowercase, numbers, and symbols. Our generator creates cryptographically secure random passwords. Password strength is measured by entropy (bits): 80+ bits is strong, 128+ is very strong. Each additional character exponentially increases security. Never reuse passwords across accounts.
A strong password is: at least 12-16 characters long, uses a mix of uppercase, lowercase, numbers, and symbols, avoids common words or patterns, unique for each account. Longer passwords are exponentially harder to crack than complex but short ones.
Minimum 12 characters for important accounts, ideally 16+. Each additional character multiplies the time to crack. A 12-character password with all character types takes millions of years to crack; an 8-character password takes hours.
Yes! Password managers let you use unique, complex passwords for every account without memorizing them. They're more secure than reusing passwords or using predictable patterns. Popular options: 1Password, Bitwarden, LastPass, Dashlane.
Entropy measures password randomness in bits. Higher entropy = harder to crack. Calculated as log2(charset_size^length). A 12-character password using 95 characters has ~79 bits of entropy. 80+ bits is considered strong.
Both can be secure. Random passwords are more compact for the same entropy. Passphrases (4-5 random words) are easier to remember but longer. "correct-horse-battery-staple" has similar security to a 10-character random password but is easier to type.
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