process.arch

The operating system CPU architecture for which the Node.js binary was compiled. Possible values are: 'arm', 'arm64', 'ia32', 'loong64', 'mips', 'mipsel', 'ppc64', 'riscv64', 's390', 's390x', and 'x64'.

import { arch } from 'node:process';

console.log(`This processor architecture is ${arch}`);

const { arch } = require('node:process');

console.log(`This processor architecture is ${arch}`);