How do you calculate password strength?

We score passwords based on length (longer is better), character variety (mixing uppercase, lowercase, numbers, and symbols), and subtract points for common patterns like "123456" or repeated characters. The final score goes from 0 to 100.

Can you see my passwords?

Absolutely not. This tool runs entirely in your web browser. Your passwords are never sent to our servers or stored anywhere. Everything happens locally on your device for complete privacy.

What makes a password really strong?

The strongest passwords are long (12+ characters), use a mix of character types, avoid dictionary words or personal info, and are unique for each account. Our generator creates passwords that meet all these criteria.

How often should I change my passwords?

Change them immediately if there's been a data breach, every few months for sensitive accounts, and whenever you suspect someone might know them. Most importantly, use different passwords for different accounts.

Password Strength Calculator & Generator Tool

Check password strength and generate secure passwords with our free online tool. Real-time analysis, private, and completely client-side for maximum security.

Password Strength Checker

🔒 Your privacy matters. This tool works entirely on your device. We never see or store your passwords.

Score: 0/100

Password Generator

Password Length: 16

832

Uppercase (A-Z)Lowercase (a-z)Numbers (0-9)Symbols (!@#$...)

Important Security Disclaimer

Privacy Protection: This tool operates entirely within your browser. Your passwords are never transmitted to our servers, stored, or logged anywhere. All analysis and generation happens locally on your device.

Educational Purpose: This calculator provides general guidance on password strength based on common security principles. While it helps identify weak patterns, no tool can guarantee complete security against all attack methods.

Best Practices: Use unique passwords for each account, enable two-factor authentication when available, and consider using a reputable password manager. For highly sensitive accounts, consult with cybersecurity professionals.

No Liability: We provide this tool for educational purposes only. Users are responsible for their own password security decisions and account protection.

Keep Your Accounts Safe with Strong Passwords

Weak passwords are like leaving your front door unlocked. Hackers use automated tools that can crack simple passwords in seconds. Our tool helps you create passwords that would take centuries to break.

The best part? Everything happens right in your browser. Your passwords never leave your device, so you can check and generate passwords without worrying about privacy.

Scenarios

When you need this tool

Creating new accounts for important services like banking or email
Updating old passwords that might be compromised
Checking if your current passwords are actually secure
Generating unique passwords for each of your accounts

How to use this password toolkit

Test your current password

Type it in the checker to see how strong it really is and get tips for improvement.

Set your preferences

Choose the length and character types you want in your new password.

Generate and copy

Click generate to create a strong password, then copy it to use on your accounts.

Store it safely

Save your new password in a password manager or write it down somewhere secure.

Frequently Asked Questions

Privacy-First Security

Password Strength Calculator & Generator: Check Security, Create Strong Passwords

Test your password strength and generate bulletproof passwords instantly. Our tool runs completely in your browser - we never see your passwords. Get real-time security feedback, actionable tips, and create custom passwords with adjustable length and character types. Perfect for protecting your accounts without compromising privacy.

Complete Privacy Protection

Everything happens in your browser. Your passwords never leave your device or get sent to any server.

Instant Security Analysis

Real-time strength scoring with clear feedback on what makes passwords weak or strong.

Smart Password Generation

Create custom passwords with your preferred length and character mix. Copy with one click.

Comprehensive Methods & Features

How We Score Password Strength

• Length bonus: Extra points for each character beyond 8
• Character variety: Points for mixing uppercase, lowercase, numbers, and symbols
• Pattern detection: Deductions for common passwords and repetitive sequences
• Final score: 0-100 scale with clear weak/fair/good/strong ratings

Password Generation Features

• Adjustable length from 8 to 32 characters
• Choose your character types: uppercase, lowercase, numbers, symbols
• Guaranteed inclusion of selected character types
• Cryptographically secure random generation

Password Security Topics

Password Strength CalculatorHow Strong Is My PasswordPassword GeneratorPassword Security ToolStrong Password Creator

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Password Strength Calculator & Generator: Check Security, Create Strong Passwords