Instantly analyze your password's security. Check length, complexity, and vulnerability patterns — all in your browser, never sent anywhere.
Type or paste a password to see its strength score in real time, along with the factors behind it: length, character variety, common-pattern penalties and estimated crack time. The Generate button creates a strong random password you can copy with one click.
Use it to audit passwords you already use, or to generate new ones for accounts that matter. A strong password is long (12+ characters), mixes uppercase, lowercase, digits and symbols, and avoids dictionary words, names and obvious sequences.
Remember: no password is safe if reused across sites. Use the generator to create unique passwords and store them in a password manager - strength alone does not protect you from credential stuffing on other websites.
When checking an existing password, type it once and clear the field afterward - the tool never stores what you enter. For shared accounts, generate a strong password here and distribute it through a password manager rather than chat or email.
Measured in bits of entropy. Higher entropy = longer crack time. <28 bits = very weak (cracked instantly). 60-79 bits = strong (centuries). 80+ bits = very strong (millions of years).
No. All analysis happens in your browser. We never see or store your password.
Minimum 12 characters. For email and banking, 16+.
Yes. Bitwarden (free), 1Password, or Apple Keychain generate and store unique passwords.
Yes. Enable 2FA on all accounts that support it — even if your password is stolen, attackers can't access your account.
This checker scores passwords against length, character variety, dictionary patterns and repeated sequences. A strong password should be at least 12 characters and combine uppercase, lowercase, digits and symbols - but length matters more than complexity: 'correct horse battery staple' beats 'P@ssw0rd123' every time.
Remember: a strength meter is guidance, not a guarantee. The real defense is uniqueness per site plus 2FA.