🛡️ Password security checker

How Secure Is My Password🔒

Check how secure your password is with this password checker. Test password strength, estimate crack time, spot weak patterns and see how safe or strong your password really is with an instant password strength test in your browser.

🔒 Checked locally in your browser ⚡ Password strength test 🧮 Crack-time estimate
Password Strength Checker
Your password is analyzed locally and is not submitted by this tool.
For extra caution, you can test a similar pattern instead of entering a password you actively use.
Generate Password

Password Security Score

Strength
Start typing…
0 / 100
Estimated crack time
—
Estimated entropy
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Password length
0 characters
Estimated crack time assumes an offline attack at 10 billion guesses per second. It is a rough comparison, not a guarantee.

Security Checks

×At least 12 characters
×16+ characters for stronger protection
×Uses uppercase and lowercase letters
×Contains numbers
×Contains symbols or punctuation
×No common weak password words
×No obvious repeated characters or common sequences

Password Checker and Password Strength Test

This tool answers the practical question “how secure is my password” by checking the password for length, character variety and predictable patterns. The score and crack-time estimate are useful comparisons, but they cannot tell whether a password has already been leaked or reused elsewhere.

How secure is my password

Long, unique and unpredictable passwords are generally stronger. The checker combines several visible signals instead of judging a password by length alone.

Password strength checker

The strength score looks for length, uppercase and lowercase letters, numbers, symbols, repeated chunks, keyboard sequences and common weak words.

Estimated crack time

The estimate uses the password's approximate entropy and assumes a very fast offline guessing attack. Real-world attack speeds and methods vary widely.

Private browser check

The password calculation is performed by JavaScript in your browser. This tool does not need to submit the password to the server to calculate the result.

Password Security FAQ

How secure is my password?

A secure password is usually long, unique and difficult to guess. This password checker examines length, character variety, common weak words, repeated patterns and estimated entropy to give you a practical strength estimate.

Does this password checker store my password?

No. The password analysis runs locally in your browser. The password you type is not submitted to this tool's server, saved in a database or added to analytics events.

What makes a password strong?

Strong passwords are long, unique and unpredictable. Avoid names, dates, dictionary words, keyboard walks, repeated characters and common patterns such as 123456 or qwerty.

How strong is my password if it is long but simple?

Length helps, but predictable words and patterns can still make a long password easier to guess. A long unique passphrase or randomly generated password is usually stronger than a short complicated password.

Is password length more important than symbols?

Length is one of the most important parts of password strength. Symbols and character variety can help, but adding a few symbols does not rescue a short or predictable password.

Should I reuse passwords?

No. Password reuse is risky because one leaked password can give attackers access to several accounts. Use a different password for every important service.

What does a password strength checker test?

A password strength checker looks at password length, character variety, repeated characters, predictable sequences and common weak password patterns. It can estimate how strong a password is, but it cannot tell whether that password has already appeared in a data breach unless a separate breach check is performed.

Can this password strength checker guarantee my password is safe?

No password checker can guarantee absolute safety. This tool estimates strength from visible patterns. Real security also depends on whether the password has been reused, leaked, shared or exposed through phishing or malware.