Password Strength Checker
"Password123" is not a password—it's an invitation. Test your password strength and learn how to build digital fortresses that hackers can't breach.
The Anatomy of a Hack
Every year, millions of accounts are compromised. Not because of sophisticated zero-day exploits, but because of weak passwords. "123456", "password", and "qwerty" remain in the top 10 most common passwords globally.
Our Password Strength Checker analyzes your password against real-world attack vectors: dictionary attacks, brute force attempts, and pattern recognition. It's like having a security expert review your credentials in real-time.
How Passwords Get Cracked
Hackers use several methods to break passwords:
Dictionary Attack
Tries every word in the dictionary plus common variations (Password1, P@ssword). This is why "correct horse battery staple" is better than "P@ssw0rd".
Brute Force
Tries every possible combination. A modern GPU can test billions of passwords per second. Length is your best defense here.
Credential Stuffing
Uses leaked passwords from other breaches. If you reuse passwords across sites, one breach compromises all your accounts.
Social Engineering
Guesses based on personal info (birthdays, pet names, favorite teams). Never use information that's on your social media.
Banking & Finance
Your bank account password should be the strongest you have. Use 16+ characters with maximum complexity.
Email Accounts
Your email is the master key to everything. If someone hacks your email, they can reset all your other passwords.
Work Systems
A weak password at work can expose your entire company to ransomware or data breaches. Corporate security is everyone's responsibility.
Frequently Asked Questions
Should I use a password manager?
Absolutely. Password managers like 1Password, Bitwarden, or LastPass generate and store unique, complex passwords for every site. You only need to remember one master password.
What about passphrases?
Passphrases (e.g., "BlueSky-Coffee-Mountain-72") are excellent. They're long (which defeats brute force), memorable, and can include symbols for extra strength.
How often should I change passwords?
Modern security advice says: only change passwords if there's evidence of a breach. Forcing frequent changes leads people to use weaker, predictable passwords (Password1, Password2, etc.).
Is two-factor authentication necessary?
Yes. Even the strongest password can be phished or leaked. 2FA (via app, not SMS) adds a second layer that makes unauthorized access nearly impossible.
Privacy Guarantee
Your password is analyzed entirely in your browser. We do not log, transmit, or store any passwords entered into this tool. You can verify this by checking your browser's network tab—no data is sent.
Security Note
This tool provides estimates based on current attack methods. As computing power increases, what's "strong" today may be "weak" in 10 years. Always use the longest password a site allows.