What makes a password strong?
Length matters most. A long passphrase of random words beats a short complex one. Aim for 16+ characters, mix character types, and never reuse passwords. Estimates assume 10 billion guesses per second.
All Tools › Password Strength Checker
Password Strength Checker
See how strong a password is, checked privately in your browser.
Strength: –
0Length
0Entropy (bits)
–Est. crack time
🔒 Your password never leaves this page, nothing is uploaded.