Password Strength Checker — How Secure Is Your Password?
Find out how strong (or weak) your password really is, and get suggestions to make it stronger.
Not all passwords are created equal — 'password123' and a 16-character random string both 'work' for logging in, but one can be cracked in seconds while the other could take centuries with current technology.
Our Password Strength Checker analyzes a password's length, character variety, and common patterns to give you an indication of how strong it is, along with tips for improvement.
🛠 Ready to try it? Use the Password Strength now — free, no signup required.
Open Password Strength →How to Use the Password Strength
- Open the Password Strength Checker tool.
- Type the password you want to evaluate into the input box.
- View the strength indicator (e.g., weak, medium, strong) update in real time as you type.
- Review any suggestions shown for improving the password's strength.
- Adjust your password and re-check until it reaches a strong rating.
Common Use Cases
- Checking whether a newly created password meets a reasonable security standard.
- Learning what makes a password weak (e.g., common words, predictable patterns).
- Testing variations of a password idea before settling on one to use.
- Auditing personal account passwords as part of a security review.
- Teaching others about password security with a visual, interactive example.
Frequently Asked Questions
Is my password sent anywhere when I check it?
No, the strength check is performed entirely in your browser using JavaScript — your password is never transmitted to a server or stored.
What makes a password 'weak'?
Common weaknesses include short length, using only lowercase letters or only numbers, common words or phrases, predictable patterns (like '12345' or 'qwerty'), and reuse of personal information like names or birthdates.
Does a 'strong' rating guarantee my password can't be cracked?
No rating can guarantee absolute security — strength checkers estimate relative resistance to common cracking methods, but real-world security also depends on how the password is stored and protected by the service you're using it with.
Should I check my actual account passwords here?
While the check happens locally and isn't transmitted, as a general best practice avoid entering your most sensitive, currently-in-use passwords into any third-party tool — consider testing a similar but not identical password to gauge strength patterns.
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