Password Generator - Free Online | FunToolX
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About this tool
Password Generator is a free online generator. Generate secure random passwords. Generate text, codes, and assets with one click. It runs entirely in your browser — no download or sign-up needed.
Set the password length (8-128 digits) and the type of characters contained (upper case letters, lower case letters, numbers, special symbols), and click the generate button to immediately output the random password. You can generate multiple ones at once and choose the one that is most pleasing to the eye.
Password strength testing evaluates entropy (a measure of uncertainty in information theory). The higher the entropy, the more difficult it is to break violently. For example, there are 26 combinations of 8-digit pure lower-case letters, and the number of combinations of numbers and symbols has increased exponentially.
Random numbers are generated using crypto.getRandomValues()(cryptographically secure), not Math.random()(pseudo-random predictability). The generated password can be copied with one click and is suitable for use when registering an account.
Password generation tool, which generates random strong passwords with customized lengths and character types, supports batch generation and password strength detection.