Best free password strength tester

Test your password strength with Best Reviews' password strength tester. Get instant feedback on how secure your password is and receive an estimated time it would take for hackers to crack it. Your password is processed locally and never sent to our servers.

Password security tips

Use unique passwords for each account
Make passwords at least 14 characters long
Include a mix of uppercase, lowercase, numbers, and symbols
Avoid personal information like names or dates
Consider using a password manager

Password Strength Testing Tool

Think you have a strong password? Find out below.

Evaluate your password:

Need help creating an unbreakable password? Try our free and secure password generator.

Your password strength:

Estimated time to crack:

Make it unique

Use passwords unique to different online accounts. This reduces the likelihood that one compromised password would impact the security of your other accounts.

Make it random

Ensure your passwords do not follow a recognizable pattern and have a combination of uppercase and lowercase letters, numbers, special characters.

Make it long

Using long passwords is critical to password strength. Use passwords consisting of 14 characters or more for optimal security.

Is it safe to type my real password here?

Yes, it’s totally safe! Your password is never transmitted to our servers and is processed locally in your device’s web browser.

How do you calculate password strength?

We use the industry-standard zxcvbn library, which provides realistic password strength estimation.

What is a strong password?

A strong password is unique, lengthy, complex, and completely random. It should be a combination of at least 12 characters (uppercase and lowercase letters, numbers, and special symbols) with an unpredictable pattern.

A strong password is not enough

Although a strong password protects you against password cracking techniques, it doesn’t protect you from other threats, such as phishing, malware, or data breaches.

So, it’s essential to add additional security measures to your accounts to ensure they stay safe even if the hacker is able to find your password:

Enable multi-factor authentication: It makes sure no one is able to log into your accounts from a new device unless they’re able to pass a second level of authentication (SMS code, email verification, or one-time password).
Biometrics: Using biometrics to unlock your phone, laptop, or even apps with more sensitive information can be the key to blocking bad actors from getting their hands on your data if your device gets stolen.
Use a VPN service: It hides your activity online and, more importantly, secures unsafe, open Wi-Fi networks like those found in cafes, hotels, and airports.
Install an antivirus or internet security suite: They actively protect your devices from all known malware, viruses, and other pesky threats.
Learn about phishing: Nothing can help you if you give away your credentials by yourself. Phishing is getting increasingly more sophisticated, so it’s key to know how to recognize phishing messages to ensure you don’t share your sensitive information with hackers.