How can I generate ethereum account address and private key that works on ethereum main network using web3 in nodejs?


It is very simple,

const Web3 = require('web3')

const web3 = new Web3(new Web3.providers.HttpProvider("https://mainnet.infura.io/Your API key here#"));

async function createAccount(){
    var wallet = await web3.eth.accounts.create();
    console.log('Address:' + wallet.address);
    console.log('Private Key: ' + wallet.privateKey)


And run this js file in the console using node filename.js. You will get what you want.

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