Password Strength Checker

A strong password typically includes at least 12 characters, a mix of uppercase and lowercase letters, numbers, and special characters. It should avoid common words, personal information, and predictable patterns. The most secure passwords use random combinations of characters that don’t form recognizable words.

Security experts now recommend changing passwords only when there’s a reason to believe they’ve been compromised, rather than on a regular schedule. However, for accounts containing sensitive information, changing passwords every 3-6 months is still considered good practice. Always change passwords immediately if a service you use reports a data breach.

Yes, reputable password managers are generally considered very safe and are recommended by cybersecurity experts. They allow you to generate and store strong, unique passwords for all your accounts without having to remember them. The best password managers use strong encryption and zero-knowledge architecture, meaning even the company can’t access your passwords.

Length typically provides more security than complexity alone. A longer password or passphrase (even with just lowercase letters) can be more secure than a short password with special characters. However, the ideal password combines both length (12+ characters) and complexity (mixed character types). For example, “correcthorsebatterystaple” is stronger than “P@$$w0rd” despite using only lowercase letters.

No, this tool analyzes your password entirely in your browser. Your password is never transmitted to our servers or stored anywhere. The check happens instantly on your device using JavaScript, ensuring complete privacy and security.

Common password mistakes include using personal information (names, birthdays), using the same password across multiple sites, using obvious substitutions (like “0” for “o”), using keyboard patterns (qwerty, 12345), and writing passwords down in easily accessible locations. Also avoid using common words or phrases, even with minor modifications, as these are vulnerable to dictionary attacks.