Password Generator

A password generator creates strong, random passwords that are far harder to crack than anything you would invent yourself. Set the length, choose whether to include uppercase letters, lowercase letters, numbers, and symbols, and get a fresh password instantly — then copy it straight into your password manager or signup form.

Human-chosen passwords are predictable: we reuse them, base them on names and dates, and lean on patterns attackers already know. Randomly generated passwords have none of that structure, which is precisely what makes them resistant to guessing and brute-force attacks. The longer and more varied the character set, the more combinations an attacker has to try.

This generator uses your browser's cryptographically secure randomness, and the passwords it produces are never transmitted or stored anywhere. Each one exists only on your screen until you use it.

Password strength comes down to entropy — the number of possible passwords an attacker would have to try. Two things drive it up: length and the size of the character set. Every extra character multiplies the possibilities, and adding symbols and digits widens the alphabet from 26 to over 90 characters. That is why a 16-character mixed password is dramatically stronger than an 8-character one, even if both look random.

Length matters more than complexity tricks. A long password made of several character types beats a short one stuffed with substitutions like “@” for “a,” because attackers already account for those substitutions. Aim for at least 12–16 characters, and go longer for high-value accounts like email and banking, which are the keys to everything else.

Generating strong passwords only helps if you do not reuse them. The practical system is a password manager: let it store a unique generated password for every site so a breach of one account never cascades. To sanity-check an existing password, the password strength checker rates it and shows what would make it stronger.