Password Strength Meter

Q: Does a “strong” score mean the password is safe?

No meter can promise that. Use unique passwords and a reputable password manager.

Q: Why show character classes?

Some systems require mixed character types. Variety raises the search space; length still matters most.

Type or paste a password to see length, character classes, and a simple strength score.Nothing is uploaded, logged, or stored — all checks run locally in your browser.

Privacy: this page never sends your password to a server. Prefer checking a throwaway or a new draft password — do not paste credentials you use on high-value accounts into any website you do not fully trust.

Password to check

Show password

Strength—

Score: —

Length

Lowercase

Uppercase

Digits

Symbols

Charset classes

0 / 4

How scoring works

Length is the biggest factor — longer is generally stronger against guessing.
Bonus for mixing lowercase, uppercase, digits, and symbols.
Penalties for common passwords, repeated characters, and simple sequences (e.g. 1234, abcd).
This is a heuristic meter, not a guarantee against breaches or targeted attacks.

Examples

password — short, common word → very weak
Summer2024! — mixed classes but patterned → moderate
A 16+ character random mix of letters, digits, and symbols → strong on this meter
Passphrases of four unrelated words can score well on length even with fewer symbols

Check safely

Prefer local tools like this one. Readhow to check password strength safely. Need casing helpers for passphrases? Try theCase Converter.

FAQ

Is my password uploaded?

No. Evaluation runs only in your browser. We do not transmit, save, or log the value you type.

Does a “strong” score mean the password is safe?

No meter can promise that. Reused passwords, phishing, and leaked databases are separate risks. Use unique passwords and a reputable password manager.

What length should I aim for?

Many sites accept 12–16+ characters. Longer random secrets or memorable multi-word passphrases are generally better than short complex ones.

Why show character classes?

Some systems still require mixed character types. Variety also raises the search space for online guessing — length still matters most.