A password generator should produce unpredictable values using a suitable random source. Choose a length the service accepts, avoid ambiguous restrictions only when necessary, and generate a different password for every account. Store them in a trusted password manager rather than trying to memorize dozens of random strings.
Do not paste existing passwords into a generator or share output in a forum. A generated password is not useful if it is copied into a note that syncs insecurely or reused later. For a memorized master secret, use a different deliberate passphrase process. NIST guidance emphasizes length and the limits of simple complexity rules.
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