Password Strength Checker

The single most impactful factor. Points scale with length: 6+ chars (+10), 8+ (+10), 12+ (+10), 16+ (+10). Every extra character multiplies the possible combinations exponentially.

Uppercase (+10), lowercase (+10), digits (+10) and symbols (+10). Each type widens the character set — from 26 (lowercase only) to 94+ (all four types).

Repeated characters like "aaa" (−10) and sequential runs like "123" or "abc" (−10) are detected automatically, because attackers try these patterns first.

Extra points for 12+ characters combined with digits and symbols (+10), and another +10 for passwords of 20 characters or more — recognising truly strong passwords.

Crackable in seconds or less. Too short, no variety, or common pattern detected.

Still vulnerable to dictionary or fast brute-force attacks. Needs more length or variety.

Adequate for low-stakes accounts, but not recommended for email, banking or work logins.

Good password. Resistant to brute-force; would take years to crack at 10B guesses/sec.

Excellent. Centuries or more to crack. Use this level for all sensitive accounts.

16+ characters — the most impactful single change. Moves the crack-time estimate from hours to billions of years.

All four character types — uppercase, lowercase, digits and symbols together raise the charset from 26 to 94, multiplying combinations 3× per character.

Random-looking sequence — no real words, names, dates or keyboard walks. Our generator uses CSPRNG so there are no detectable patterns.

Sequential runs like 123, abc or qwerty — first things every cracking tool tries.

Repeated characters like aaa or 111 — reduces effective entropy even in long passwords.

Personal information — birthdays, names, pet names and addresses are trivially guessable via targeted attacks or data you've shared publicly.