You can take a screenshot in Puppeteer using
await page.screenshot({path: 'screenshot.png'});
The path is relative to the current working directory.
Want to have a screenshot in a size different to 800×600? See How to set screenshot size in Puppeteer?
Full example:
// Minimal puppeteer example const puppeteer = require('puppeteer'); (async () => { const browser = await puppeteer.launch(); const page = await browser.newPage(); await page.goto('https://techoverflow.net', {waitUntil: 'domcontentloaded'}); // Screenshot to verify result await page.screenshot({path: 'screenshot.png'}); // Cleanup await browser.close(); })();