Password Strength Checker
Estimate how long it would take to crack a password - checked locally, never sent.
About this tool
Check how strong a password is and estimate how long an offline attacker would need to crack it. The estimate is based on length and character variety, computed entirely on your device - the password is never transmitted.
Is it safe to type a real password here?
The check runs locally and nothing is sent, but as a habit, prefer testing a similar-shaped password rather than your actual one.
What makes a password strong?
Length beats complexity: every extra character multiplies the work for an attacker far more than swapping a letter for a symbol.