Password strength checker
Check how strong your password is — entropy, crack time estimates, character analysis, and improvement tips.
?? 100% private — everything runs in your browser. Your password is never sent to any server.
⚠️ This is one of the most commonly used passwords and will be cracked almost instantly by any attack.
Strong password generator
Length:
20
Click the password to copy it
Building authentication in PHP?
Browse ebooks →
View courses →
password_hash(), password_verify(), session security, and OWASP best practices — covered in our PHP developer ebooks.