Password Generator

This tool assembles a random password from the character types you enable — uppercase letters, lowercase letters, numbers, and symbols — at any length between 4 and 128 characters. Each character is drawn using crypto.getRandomValues, the browser's cryptographically secure random source, rather than the predictable Math.random that many quick scripts rely on. A live strength meter rates every result as Weak, Medium, or Strong, and a short history keeps your recent passwords within reach while you decide which one to keep.

Reach for it whenever an account, database, API key, or Wi-Fi network needs a credential that no person would ever choose on their own. Generated strings carry no dictionary words, keyboard patterns, or personal details, which is exactly what defeats guessing and brute-force attacks. It is also handy when a site enforces a specific policy — say, a minimum of 16 characters with at least one symbol — because you can dial the length and character sets to match before you copy.

Suppose a service requires 20 characters including symbols. Set the slider to 20, leave all four character types on, and generate: you might get something like k7$Rf2!qXm9@Lp4#Vn8w. If you plan to type it by hand or read it aloud, enable Exclude similar characters so lookalikes such as the letter l, the digit 1, capital O, and zero never appear together, and Exclude ambiguous characters to drop brackets and quotes that some input fields handle poorly.

Length matters more than any single trick: each extra character multiplies the number of possible combinations, so a longer password from a smaller set often beats a short one packed with symbols. Turning off a character type shrinks that pool, and disabling every type leaves nothing to build from, so at least one must stay selected. Finally, reuse is the real weakness — a password is only as safe as the one site it protects, so generate a fresh, unique one for each account instead of sharing a single strong string everywhere.