All Tools
Type or paste a password to see its strength score, estimated crack time, and a detailed security breakdown — all analyzed instantly in your browser.
Test how strong your password is before you use it anywhere. Wolf Password Strength Checker analyzes your password in real time — scoring length, character variety, entropy, and common patterns. You get a strength rating from Very Weak to Very Strong, an estimated crack time, and specific tips to improve weak passwords. Unlike online password checkers that phone home, this tool runs 100% in your browser. Your password is never transmitted, logged, or stored anywhere. Verify by checking your browser's network tab — zero requests are made.
The checker analyzes your password in real time as you type. It scores based on length, character variety (uppercase, lowercase, numbers, symbols), entropy, and checks for common patterns like "123", "qwerty", or "password". The score maps to a strength label from Very Weak to Very Strong.
Yes. Your password never leaves your browser. This tool runs 100% client-side with no server calls, no tracking, and no logging. Nothing is transmitted or stored anywhere. You can verify this by checking your browser's network tab — zero requests are made.
A strong password is at least 12 characters long, uses a mix of uppercase letters, lowercase letters, numbers, and special characters, and avoids common words or patterns. The best passwords are random or use a passphrase of unrelated words. Avoid personal information like birthdays, names, or pet names.
Crack time is estimated based on the password's entropy — the number of possible combinations given its length and character set. We assume an attacker trying 10 billion guesses per second (high-end GPU cracking). Common passwords are flagged as instantly crackable regardless of length.