Password Strength Analyzer & Generator Online | JavaInUse

🔒 Password Strength Analyzer & Generator

Analyze your password strength, estimate crack time, and generate secure passwords. All processing happens in your browser.

🔒 100% Client-Side â¢ Passwords Never Sent

🔎 Password Analyzer

Strength -

Security Checks

Uppercase Lowercase Digit Special Character 12+ Length No Dictionary Word No Keyboard Pattern No Repeated Chars No Sequential Not Common

Score

Entropy (bits)

Crack Time

Character Types

0/4

⚙️ Password Generator

Password Length 16

Uppercase (A-Z)

Lowercase (a-z)

Numbers (0-9)

Symbols (!@#$...)

Exclude Similar (0O, 1l)

Include Brackets

Generated Password

📚 Passphrase Generator

Number of Words 4

Capitalize Words

Add Numbers

Use Separator (-)

🕑 Recent Generated

About Password Security

A strong password is your first line of defense against unauthorized access. This tool analyzes your password using multiple criteria and estimates how long it would take to crack using modern hardware.

What Makes a Strong Password?

Length: At least 12-16 characters (longer is better)
Complexity: Mix of uppercase, lowercase, numbers, and symbols
Unpredictability: Avoid dictionary words, names, and common patterns
Uniqueness: Don't reuse passwords across different accounts

Crack Time Calculation

The crack time is estimated assuming an attacker using high-end hardware capable of 10 billion guesses per second. Real-world attacks may be faster or slower depending on the hashing algorithm and available resources.

🔒 Privacy Guarantee: Your passwords are analyzed entirely in your browser. Nothing is sent to any server. You can verify this by disconnecting from the internet and using this tool offline.

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