How secure is a randomly generated password?

A 16-character password with uppercase, lowercase, numbers, and symbols has over 7 quadrillion possible combinations, making it practically impossible to crack by brute force. The longer and more complex the password, the stronger it is.

Is my generated password stored anywhere?

No. All passwords are generated entirely in your browser using the Web Crypto API. No data is ever sent to any server — your password never leaves your device.

What makes a password strong?

A strong password is long (12+ characters), random, and uses a mix of character types (uppercase, lowercase, numbers, symbols). Avoid dictionary words, personal information, or predictable patterns like "Password123!".

Should I use a password manager?

Yes. Since strong passwords are hard to remember, a password manager (like Bitwarden, 1Password, or LastPass) stores them securely and fills them automatically. Use a unique strong password for every account.

How often should I change my passwords?

Current NIST guidelines recommend changing passwords only when they may be compromised, rather than on a fixed schedule. Focus on using unique strong passwords for each account rather than frequent changes.

Password Generator

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Generate strong, secure passwords with custom settings.

Select at least one character type

Length16 characters

83264

A–Z Uppercasea–z Lowercase0–9 Numbers!@# Symbols

How to use Password Generator

1Set your desired password length using the slider (8–64 characters).
2Toggle character types: uppercase, lowercase, numbers, and symbols.
3Your password generates automatically with every change.
4Click "Copy" to copy the password to your clipboard.
5Click "Regenerate" to get a new password with the same settings.

Frequently Asked Questions

Learn More

Password Strength — Wikipedia

How password strength is measured and what makes a password secure

Password Manager — Wikipedia

How password managers work and why they are recommended

Brute-force Attack — Wikipedia

How attackers try to crack passwords and how complexity prevents it

NIST Password Guidelines

Official US government guidelines for password security

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