Password Generator
Generate strong random passwords with entropy readout.
developer utilities · client-side · works offline
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Strong password generator, fully in your browser
This password generator creates strong random passwords using your browser's cryptographic random source (crypto.getRandomValues) with rejection sampling, so every character is drawn uniformly with no modulo bias. Choose the length and mix of lowercase, uppercase, digits, and symbols, and the tool shows the resulting entropy in bits - the honest measure of how hard a password is to brute-force.
Because generation is 100% client-side, the password exists only on your machine: nothing is transmitted, logged, or stored. Aim for at least 70-80 bits of entropy for important accounts, and prefer a password manager over memorising anything. The tool works offline once the page has loaded.
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