Password Strength Checker
Test how secure your password is against cracking attempts.
Why Check Password Strength?
Weak passwords are the easiest entry point for hackers. A password like "123456" can be cracked instantly. Our Password Strength Checker evaluates the complexity of your password based on length and character variety (entropy).
Is it safe to type my password here? Yes. This tool runs entirely in your browser using JavaScript. We do not store, record, or transmit your password anywhere. However, for maximum security, we recommend not typing your actual banking passwords into any online tool, but rather testing variations to understand good password habits.
Frequently Asked Questions
What makes a password strong?
Length is the most important factor, followed by a mix of uppercase, lowercase, numbers, and symbols.
Does this tool save my password?
No, absolutely not. The analysis is done client-side.
How long should my password be?
We recommend at least 12 characters, but 16+ is ideal.
What is entropy?
Entropy is a measure of randomness. Higher entropy means a password is harder to guess.
Is it free?
Yes, 100% free.
Can I use this on mobile?
Yes, it works on all devices.
Do you share data with third parties?
No, we do not collect any password data.
Why does it say "Weak" for short passwords?
Short passwords, even with symbols, are vulnerable to brute-force attacks.
What if I use common words?
Common dictionary words (like "password") make your password weak, even if you add numbers.
Do I need to sign up?
No.