Password strength checker

Check your password strength online with this password strength checker. Instantly analyze how secure your password is by measuring its length, complexity, and resistance to brute-force attacks. The tool evaluates uppercase and lowercase letters, numbers, symbols, and dictionary patterns. Common long-tail use cases include online password strength test, how strong is my password checker, and secure password strength meter.

What is a Password Strength Checker?

A password strength checker is a tool that measures how difficult a password would be to guess or crack. It highlights weak patterns (like “123456” or “password”), short lengths, or repeated characters, and provides a score ranging from weak to strong. This helps users create strong, secure passwords for accounts, apps, and devices.

Why use a Password Strength Test?

• Identify weaknesses: Detect if your password is too short, predictable, or based on common words.
• Improve security: Learn how to add symbols, numbers, and mixed-case letters to strengthen it.
• Stay ahead of hackers: Test against common attack vectors like brute-force, dictionary, and pattern-based guessing.
• Compliance: Many organizations require strong passwords that pass a strength checker.

How to use the Password Strength Checker

1. Enter your password in the input field.
2. Check the score: results usually range from “Very Weak” to “Very Strong.”
3. Review feedback on what makes it weak (e.g., too short, lacks symbols, common words).
4. Strengthen and re-test until your password reaches a strong or very strong rating.

What makes a password strong?

• Length: At least 12 characters (the longer, the better).
• Character variety: Include uppercase, lowercase, numbers, and special symbols.
• Unpredictability: Avoid common words, names, dates, or keyboard sequences like “qwerty.”
• Uniqueness: Use a different password for every account.

Who should use it?

• Everyday users who want to know if their social media or email passwords are safe.
• IT professionals verifying employee password policies.
• Businesses ensuring strong customer logins and compliance with security standards.
• Students & beginners learning best practices in cybersecurity.

Examples

Password ratings

"123456"           → Very Weak
"Summer2025"       → Weak
"Gr8!coffeeMug"    → Strong
"Aq!7Xf@2$kZpL3"   → Very Strong

Tips for stronger passwords

- Use passphrases (e.g., "Blue!Train$Monkey#92")
- Add random capitalization and symbols
- Avoid repeating the same password across websites
- Store in a trusted password manager

FAQ

Does the checker store my password?

No—reputable password strength checkers run locally in your browser and never send passwords to a server.

Is a long password without symbols still secure?

Length adds strength, but mixing character types increases resistance to attacks. A long passphrase is good, but a long, complex password is better.

How often should I check my passwords?

Whenever you create a new account or update existing credentials, test it with a password strength meter.