Free tool

Is your password strong enough?

Enter a password below to estimate strength. This check runs entirely in your browser—we do not collect, store, or transmit what you type.

Strength—

Time to crack (illustrative brute-force)

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Need a new password? Use the password generator.

Strong passwords start with good habits

  • Do not use names, birthdays, or easy phrases.
  • Avoid predictable keyboard patterns and repeated characters.
  • Use long, unique passwords per site; a password manager helps.
  • Turn on two-factor authentication where available.

Password strength checker: why test your passwords?

Stolen and guessed credentials remain a leading cause of account takeover. A password strength checker helps you spot weak choices—short strings, common words, or simple patterns—before attackers do. This page is a free password health tool: it scores your input locally so you can improve password security without sending your secret over the network.

How criminals guess passwords

Automated tools try huge lists of common passwords, leaked passwords from past breaches, and pattern-based guesses (like “qwerty” or “123456”). Pure brute-force matters too, which is why length and character diversity increase the search space. No browser-based password checker replaces breach monitoring or MFA—but it is a fast sanity check for your next passphrase.

What this tool does not do

We do not know whether your password was exposed in a real-world leak. For that, use a reputable breach notification or password manager with breach alerts. Pair strong, unique passwords with two-factor authentication and safer browsing habits—eSafe helps on the browser side with extension monitoring and checkout safety.