Password Strength Tester
Password Strength Tester password checker test password password score password safetyPassword Strength
Password Analysis
Description
- Password Strength Tester tests the strength of your password.
- The password strength tester also analyzes your password to determine if it contains numbers, lowercase, uppercase, symbols, and the recommended minimum length.
Facts
- Strong password tips:
- A strong password should contain at least 12 characters.
- Longer, unique passwords or passphrases generally resist guessing better than predictable composition patterns.
- A strong password should not be based on repeating patterns like 123 or abc.
- A strong password should not be shared with other online accounts, meaning you should use a unique password for each online account.
- Use our Password Generator to help you create a secure, complex, random password.
- A strength estimate cannot detect every leaked, reused, service-specific, or attacker-known password.
Definitions and scope
This tester uses zxcvbn pattern analysis to estimate guess resistance and display detected character categories. It does not test an account or breach every possible password list.
A score reflects the library model and entered text. Real attack cost depends on leaked hashes, server hashing, rate limits, attacker knowledge, and reuse.
Worked example
Test a made-up sample rather than a real secret. Compare a short predictable pattern with a longer random value; the score should improve, but neither result guarantees account safety.
Assumptions and limitations
The model can recognize many common patterns but cannot know private context, a service's blocklist, whether the password is reused, or whether it has already leaked.
Never treat the meter as approval to reuse a secret. Phishing, keylogging, insecure recovery, and weak server storage bypass the qualities this estimate measures.
Common mistakes
Common mistakes include pasting a production password into any optional tester, optimizing only for the badge, and assuming required symbols always add meaningful strength.
Privacy and accuracy
Analysis runs locally and input is not submitted to Awesome Tools, but extensions, device monitoring, and browser state are outside page control. Prefer testing a structurally similar dummy value.
Password Strength Tester FAQ
Does a Very Strong score mean the password is safe?
No. It is one model's estimate. Uniqueness, secure storage, multifactor authentication, and resistance to compromise still matter.
Authoritative source and related tools
Review NIST password guidance for source definitions and current guidance.