Quick start
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Enter password
See a strength bar and per-rule checklist.
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Read checks
Length, case, digits, symbols, and more.
Password Strength Analyzer
Type a password for instant strength scoring and checklist. Never uploaded; great for signup forms or alongside the Bcrypt tool.
Privacy: processed locally, never uploaded.
↓ Paste in the input area below to see results instantly
Analyzed locally. Your password is never uploaded.
Notes
About the score
Estimates strength from length and character variety. Store passwords with bcrypt or Argon2 in production.
Type a password for instant strength scoring and checklist. Never uploaded; great for signup forms or alongside the Bcrypt tool.
Features and use cases
Scores strength from length, character classes, and weak patterns with improvement tips—nothing is collected.
For signup UX demos, security training, and policy checks—use fake passwords with similar structure, not real ones.
Not a cracker
Heuristic strength only; no cracking or breach-database lookup.
Typical Workflow
Integrate this tool into user registration forms for real-time password strength feedback. As users type, it immediately shows scores and unmet criteria (like missing special characters), guiding them to create stronger passwords. Ideal for frontend-backend separated projects with zero network requests.
When used with password hashing tools (e.g. Bcrypt), first verify the password meets policies (like 12-character mix) here before hashing. Prevents registration failures due to backend enforcement, improving UX.
Examples
Weak
Input
123456
Short with low character variety.
FAQ
Is the password stored?
No. Analysis runs in browser memory only.
Why doesn't the tool enforce special characters?
Per NIST guidelines, length trumps complexity. A 12-character alphanumeric password is safer than an 8-character one with symbols. The tool suggests but doesn't enforce symbols, balancing security and usability.