eth-public-address-from-private/index.js

Get Ethereum public address from private key using ethers.js

const { Wallet } = require("ethers");

/**
 * Takes a private key and returns the associated Ethereum public address.
 * @param {string} privateKey - The private key of the Ethereum wallet (0x... format)
 * @returns {string} The public address (0x... format)
 */
function getPublicAddress(privateKey) {
    try {
        const wallet = new Wallet(privateKey);
        return wallet.address;
    } catch (error) {
        throw new Error("Invalid private key");
    }
}

module.exports = { getPublicAddress };