Frequently Asked Questions
How is password strength estimated?
The analyzer scores length and character variety to estimate practical strength.
What should I aim for?
Use long unique passwords with mixed character sets and avoid predictable patterns.
Is the password uploaded?
No. Analysis runs in your browser only.
Example input/output
Input: P@ssw0rd!2026
Output: Strength: Strong / Entropy: ~62 bits / Length: 13 / Has uppercase, lowercase, numbers, symbols
How it works
This tool calculates password entropy as log₂(charset_size^length), checks for common patterns, measures character diversity, and scores the result. No password data leaves your browser.
Common use cases
- Analyse the strength of user-submitted passwords before accepting them
- Check whether a password meets minimum security requirements
- Identify weak password patterns for security education