How the calculation works
Strength is estimated from length and the mix of lowercase, uppercase, numbers and symbols, then reduced for common words, repeats and simple sequences.
Frequently asked questions
Is my password sent anywhere?
No. It is analysed in your browser and never stored.
What makes a password strong?
Length and unpredictability. A long random password or a passphrase of several unrelated words is far stronger than a short clever one.