🔐 Password Strength Checker
Test password security instantly
Enter Password
Check if password contains username
Test Examples
Strength Analysis
✓ Checklist
- Use 12+ characters
- Avoid dictionary words
- No personal info
- Unique per account
- Use password manager
Free Password Strength Checker – Test Password Security Online
In today’s digital world, password security is critical. Our free password strength checker helps you evaluate passwords and create stronger credentials to protect your online accounts. Test your password security with our advanced checker that analyzes multiple factors in real-time.
Why Use a Password Strength Checker?
Weak passwords are the leading cause of security breaches. Cybercriminals use sophisticated tools to crack passwords in seconds. Our password strength tester analyzes your password instantly, checking for vulnerabilities and providing feedback. Whether creating new passwords or testing existing ones, our tool ensures your credentials meet modern security standards. Use our word counter tool to document your password policies.
How Our Password Strength Checker Works
Our advanced validator evaluates multiple security factors: password length, character variety (uppercase, lowercase, numbers, special characters), entropy bits to measure randomness, and estimated crack time using brute-force attacks. All analysis happens locally in your browser—your password never leaves your device, ensuring complete privacy. Compare your security metrics with our percentage calculator for tracking improvements.
What Makes a Strong Password?
A strong password contains at least 12 characters combining uppercase letters, lowercase letters, numbers, and special symbols. It should avoid common words, dictionary terms, personal information like birthdays or names, and sequential patterns. Our security checker scores passwords on a 100-point scale, helping you understand exactly how secure your password is against modern hacking techniques.
Key Features of Our Password Tester
Real-time password analysis with instant strength ratings from weak to very strong. The built-in password generator creates secure, random credentials meeting all requirements. Visual strength meters and detailed security metrics including crack time estimates help you understand vulnerability. Our requirements checklist ensures passwords meet industry standards. The entropy calculator measures true password randomness—higher entropy means greater security.
Understanding Password Security Metrics
When testing a password, our tool displays important metrics. The strength score rates your password 0-100 based on length, complexity, and character variety. Password entropy, measured in bits, indicates randomness—higher entropy means greater security. The crack time estimate shows how long hackers would need to guess your password using modern computing power. Track these metrics with our health tracking tools for overall security management.
Best Practices for Password Security
Use unique passwords for every account to prevent credential stuffing attacks. Enable two-factor authentication whenever possible for additional security. Consider using a reputable password manager to generate and store complex passwords securely. Change passwords immediately if you suspect a breach. Avoid reusing old passwords and never share passwords via email or text. Our password strength checker helps you implement these best practices by identifying weak passwords before they become security risks.
Common Password Mistakes to Avoid
Many people make critical mistakes when creating passwords. Using common passwords like “password123” or “qwerty” makes accounts extremely vulnerable. Including personal information such as names, birthdays, or addresses in passwords allows hackers to guess credentials easily. Short passwords under 8 characters can be cracked in minutes. Reusing the same password across multiple accounts means one breach compromises all accounts. For secure credential management, use our financial calculator to budget password manager subscriptions.
Start Checking Your Password Security Now
Don’t wait until it’s too late. Use our free password strength checker today to evaluate your current passwords and create stronger credentials. Our tool is completely free, requires no registration, and ensures total privacy. Protect your online identity, financial information, and personal data with passwords meeting the highest security standards. Test your password strength now and take the first step toward better cybersecurity. Use our color visualization tool to organize your password strength data.