Free Password Generator Keeps Your Passwords on Your Device

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A developer built a free online password generator that promises passwords never leave the user's device, with no uploads, API calls, or analytics capturing them. The tool relies on the Web Crypto API's crypto.getRandomValues() rather than Math.random(), since the latter is predictable and unsuitable for secrets. The author also notes that rejection sampling avoids a slight modulo bias when drawing characters. Password strength is framed in terms of entropy, which grows with both length and character set size, so the default is 16 characters with mixed character types. The article argues that strength meters should calculate real entropy and penalize common patterns instead of merely rewarding surface complexity.

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