Password Strength Checker
See how long a password would realistically survive a brute-force attack, and get clear tips to make it stronger.
—0
0Length
0Entropy (bits)
—Crack time
Checklist
About this tool
Your password is analysed only in your browser — nothing is sent to a server. The score combines length, character variety and uniqueness. The crack-time is a rough estimate assuming an attacker can try about 10 billion guesses per second with modern hardware; a truly random, longer password is always the safest choice.