Password Strength Checker
Check how strong your password is instantly. See its strength score, character types, entropy estimate and security recommendations.
Enter a password above to check its strength.
What Is a Password Strength Checker?
A password strength checker evaluates characteristics such as password length, character variety and common patterns to provide an estimate of password strength.
A strong password should generally be long, unique and difficult to predict. Avoid using easily guessed personal information, common words or predictable sequences.
What Makes a Password Strong?
Long
Longer passwords provide a larger possible search space than short passwords.
Unique
Don't reuse the same password across multiple important accounts.
Unpredictable
Avoid names, birthdays, keyboard patterns and common password phrases.
Random
Randomly generated passwords can avoid many predictable patterns.
Password Security Tips
Use a Long Password
Prefer longer passwords or passphrases for important accounts.
Never Reuse Important Passwords
Use a different password for each important service whenever possible.
Enable Two-Factor Authentication
Add another authentication factor to important accounts whenever the service supports it.
Use a Password Manager
Password managers can help you create and remember unique passwords.
How This Password Checker Works
Enter Password
Enter the password you want to evaluate.
Analyze Characteristics
The tool checks length, character types and common patterns.
Calculate Score
A strength score is calculated from the password's characteristics.
Improve Your Password
Use the checklist and recommendations to improve weak passwords.
Password Strength Checker FAQ
Is this password strength checker free?
Yes. The ExplainMeTech password strength checker is free to use and does not require an account.
Is my password sent to a server?
No. The analysis in this tool is performed locally in your browser. The password is not submitted to an ExplainMeTech server.
What does the password score mean?
The score is an estimate based on characteristics such as length, character variety and predictable patterns. It should not be treated as a guarantee that a password cannot be cracked.
How long should my password be?
Longer passwords are generally better. For important accounts, use a long, unique password or passphrase and consider using a password manager.
Is a password with symbols automatically strong?
No. Adding symbols alone does not make a password secure. Length, uniqueness and unpredictability are also important.
Can I use this tool to check my banking password?
For highly sensitive passwords, it is safer to use the checker with a representative or newly generated password rather than entering the actual password you currently use.