Test how secure your password is against hacking attempts
Our password strength checker uses advanced algorithms to evaluate your password's security. Unlike simple checks that only look at length and character variety, our tool:
Weak passwords are one of the most common ways hackers gain access to accounts. A strong password:
Use our password generator tool to create strong, random passwords for all your important accounts.
Our password strength checker uses the zxcvbn library, an advanced password estimation tool developed by Dropbox. It analyzes your password for common patterns, dictionary words, sequences, and other factors that make passwords vulnerable to attacks. The tool evaluates complexity and estimates how long it would take for a computer to crack your password through brute force methods.
Yes, it's completely safe. Our password strength checker works entirely in your browser - your password never leaves your device or gets transmitted over the internet. We don't store, save, or send your password anywhere. The analysis happens locally on your computer or mobile device.
A strong password typically has these characteristics:
For optimal security, we recommend passwords with at least 12 characters. Longer passwords are significantly harder to crack. A 16-character password with a mix of character types would take centuries to crack with current technology, while an 8-character password might be cracked in hours or days.
Yes, we highly recommend using a password manager. Password managers can generate and store strong, unique passwords for all your accounts, so you don't have to remember them. This eliminates the temptation to reuse passwords or create weak passwords that are easy to remember. Popular options include LastPass, 1Password, Bitwarden, and Dashlane.
Current security best practices suggest that you don't need to change passwords regularly unless there's a specific reason (like a data breach). Instead, focus on creating strong, unique passwords for each account and use two-factor authentication where available. If you suspect any account has been compromised, change that password immediately.