Runs entirely in your browser using a CSPRNG. Nothing you generate is ever sent anywhere.
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Passphrase
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Runs entirely in your browser. Uses crypto.getRandomValues (CSPRNG), not Math.random. Nothing you generate is ever sent anywhere. Passphrase mode uses the full 7,776-word EFF list, cached locally after first load so future visits skip the network entirely; if it can't be loaded (no network, CDN unreachable, first visit while offline, with no cache yet) it falls back to a smaller embedded list, so the tool always works either way. Live status is shown above the passphrase controls.