Strong Password Generator

Yes. They use the browser cryptographic random number generator, the same source used to create encryption keys. Many online generators use Math.random, which is predictable and completely unsuitable for passwords.

With this tool, yes - generation happens entirely in your browser, so the password is never sent over the network, never logged and never seen by any server. You can verify this by disconnecting from the internet: the tool keeps working.

For a random password, 16 characters with mixed types gives around 100 bits of entropy, which is far beyond brute-force reach. Go to 20 or more for accounts that protect money, email or infrastructure.

Entropy measures how many guesses an attacker would need. Each extra bit doubles that number. Below 60 bits is weak against a determined attacker, 80 or more is strong, and 128 is far beyond any realistic attack.

No, and this is a common trap. The entropy shown here assumes every character was chosen at random. A human-chosen password like "P@ssw0rd2024!" has the same character types but far less real entropy, because attackers try predictable substitutions first.

No. The strongest password still fails if it is reused and one site is breached. Use a unique password per account and a password manager to store them.