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Free Password Strength Tester

Security

Analyze password security with entropy and complexity scoring.

ttb run password-strength

Very Weak

Length is too short. Use at least 8+ characters.

8+ Chars
Symbols
Numbers
Uppercase

Entropy Estimation

A truly secure password should be at least **12-16 characters** long and include a mix of cases, numbers, and symbols. Avoid common dictionary words, birthdays, or repetitive patterns.

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How to Use Password Strength Check

Type or paste a password into the input field. The analyzer instantly evaluates its strength based on length, character diversity, common patterns, and dictionary word detection. A visual meter shows the strength rating from "Very Weak" to "Very Strong" along with the estimated time to crack it via brute force.

1

Enter your parameters

Configure the inputs for the Password Strength according to your specific needs.

2

View real-time results

The utility instantly processes your request and displays the calculated outputs directly in your browser.

3

Copy or Download

Click the copy icon next to the final output to instantly grab the result, or export it if applicable.

Frequently Asked Questions

Is my password sent to a server?+
No. The entire analysis runs locally in your browser. Your password is never transmitted, logged, or stored anywhere.
Why is my password rated weak even though it has symbols?+
Common substitutions like "P@ssw0rd" are well-known to attackers and included in standard dictionary attacks. True strength comes from length (16+ characters) combined with genuine randomness, not predictable symbol swaps.

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