If you are migrating or downloading for an existing project, be aware that v6 is a complete redesign:

Use code with caution. Key Differences: v6 vs. v5

import { ethers } from "https://cdnjs.cloudflare.com/ajax/libs/ethers/6.15.0/ethers.min.js"; Use code with caution.

The fastest way to download ethers.js for a local project is through your terminal: npm install ethers Using yarn: yarn add ethers Using pnpm: pnpm add ethers Downloading via CDN (Browser Usage)