Generate Ethereum Mnemonic & Address

script.bash

mkdir temp
cd temp

cat >index.mjs <<'EOF'
import { ethereum, mnemonic, secp256k1, hdWallet } from '@zoltu/ethereum-crypto'
// necessary so @peculiar/webcrypto looks like browser WebCrypto, which @zoltu/ethereum-crypto needs
import webcrypto from '@peculiar/webcrypto'
globalThis.crypto = new webcrypto.Crypto()

export async function generateAccount() {
    const words = await mnemonic.generateRandom(256)
    const seed = await mnemonic.toSeed(words)
    const privateKey = await hdWallet.privateKeyFromSeed(seed, `m/44'/60'/0'/0/0`)
    const publicKey = await secp256k1.privateKeyToPublicKey(privateKey)
    const address = await ethereum.publicKeyToAddress(publicKey)
    const addressString = await ethereum.addressToChecksummedString(address)
    console.log(words.join(' '))
    console.log(privateKey.toString(16).padStart(32, '0'))
    console.log(addressString)
}

generateAccount()
    .then(() => process.exit())
    .catch(error => {
        console.log('An error occurred.');
        console.log(error);
        process.exit();
    });
EOF

cat >package.json <<'EOF'
{
    "main": "index.mjs",
    "type": "module",
    "dependencies": {
        "@peculiar/webcrypto": "1.1.6",
        "@zoltu/ethereum-crypto": "2.1.4"
    }
}
EOF
npm install
node index.mjs