Password Generator

How the calculation works

Choose the length and character types, then press Calculate. Passwords are created in your browser using a secure random generator and are never sent or stored. The strength estimate is based on the length and size of the character pool.

Formula used

Strength (bits) = length × log₂(number of possible characters)

Example

A 16 character password using lowercase, uppercase, numbers and symbols has about 103 bits of strength.