Password Strength Checker

Check how strong your password is. Get a score from 0-100 and tips to make it more secure.

Enter Password

Result

Please check your inputs.

📖 How to Use This Tool

1. Enter your password into the input field (it will be masked for privacy)

2. Click the 'Check Strength' button to analyze your password

3. View your strength score from 0-100, displayed with a color-coded indicator

4. Read the tailored tips below the score to improve your password's security

5. Use the 'Generate Strong Password' button (if available) to create a new, secure password, then copy it to your clipboard

📝 What Is Password Strength Checker?

A Password Strength Checker is a simple online tool that evaluates how resistant your password is to guessing, brute-force attacks, and common cracking methods. It analyzes factors like length, character variety (uppercase, lowercase, digits, symbols), and the presence of predictable patterns such as dictionary words, sequences, or repeated characters. Your password receives a score from 0 (very weak) to 100 (very strong), along with actionable tips to fix vulnerabilities.

Why does this matter? Weak passwords are the #1 cause of account breaches. Using a strong, unique password for every account drastically reduces the risk of hacking. This tool helps you instantly identify weak spots and guides you to create passwords that are both memorable and secure — empowering you to protect your digital identity without guesswork.

🧮 Formula

Score = (L × 4) + (U × 5) + (D × 5) + (S × 6) - (C × 10)

Where: - L = total password length (characters) - U = 1 if password contains at least one uppercase letter, else 0 - D = 1 if password contains at least one digit, else 0 - S = 1 if password contains at least one special symbol (e.g., @, #, $, %), else 0 - C = number of common weaknesses detected (e.g., dictionary words, repeating characters, keyboard patterns). Each weakness subtracts 10 points. The final score is clamped between 0 and 100.

💡 Tips for Best Results

✨🔑 Use at least 12 characters — length is the single most important factor in password strength

✨🎲 Mix character types: include uppercase letters, lowercase letters, numbers, and symbols like ! or #

✨🚫 Avoid personal information (birthdays, pet names, street names) — these are easy to guess or social engineer

✨🔐 Use a passphrase: combine 4-5 random unrelated words (e.g., 'Correct Horse Battery Staple') for a strong, memorable password

❓ Frequently Asked Questions

What is considered a good password strength score?

Scores of 80-100 are generally considered very strong and resistant to most brute-force and dictionary attacks. Scores below 50 indicate weak passwords that can be cracked in seconds. For sensitive accounts like banking, aim for 90 or above.

Is it safe to paste my real password into an online checker?

Reputable password strength checkers process everything locally in your browser — your password never leaves your device. Always use a trusted tool (like this one) that clearly states no data is stored or transmitted. For extra peace of mind, check for a padlock icon in the address bar.

How often should I change my password if it scores well?

If your password scores 80+ and is unique to that service, it does not need frequent changes unless you suspect a breach. Changing passwords too often can actually lead to weaker choices. Focus on using a strong, unique password for each site, and enable two-factor authentication (2FA) where possible.