This tool generates secure, randomized passwords based on your criteria. You can specify the password length and choose which character sets to include: uppercase letters, lowercase letters, numbers, and special symbols.
Formula Used
Password = Random selection of characters from the active pool of enabled character sets
Length
— the total number of characters in the generated password (recommended minimum is 12-16)
Character Sets
— the individual pools of characters: Lowercase (a-z), Uppercase (A-Z), Numbers (0-9), and Symbols (!@#$%^&*)
Example Calculation
If you choose a length of 12 and enable all character types, the generator builds a pool of 94 possible characters. It randomly selects 12 characters, producing a strong password such as 'K9#pL2x$mW8q'.
Frequently Asked Questions
A strong password is long (at least 12-16 characters) and contains a mix of uppercase letters, lowercase letters, numbers, and symbols. Avoiding common dictionary words or predictable patterns is also critical.
Yes. The passwords are generated locally in your web browser. None of the generated passwords or criteria are sent to any server, meaning your passwords remain private and secure.
Avoiding duplicate characters does not mathematically increase password entropy, but some legacy systems require passwords without consecutive repeating characters. For security, leaving duplicates allowed is generally best.
We recommend using a dedicated, reputable password manager (such as Bitwarden, 1Password, or Dashlane) to store and auto-fill your complex passwords securely across devices.
A 16-character password with mixed characters has over 90 bits of entropy. It would take modern supercomputers trillions of years to crack it via brute-force attacks, making it practically uncrackable.