Offline Coin-Flip Seed Phrase Generator

A single self-contained HTML file that turns 253 physical coin flips into a valid 24-word BIP-39 seed phrase. No network requests, no storage, no dependencies. Download it, disconnect the machine, open the file, flip.

Best used offline: download it, unplug from the internet, then open the file from disk. The preview below runs the exact same file.

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