2 This answer is fantastic, but in the interests of a minimal, runnable example I thought I'd share my complete code and workflow for getting up and running with a Puppeteer-based web app. See this answer for a simple scheduler and a clock process version (although all three approaches can coexist in one app without doing anything special). package.json: { "name": "test-puppeteer", "version": "1.0.0", "description": "", "scripts": { "start": "node index.js" }, "author": "", "license": "ISC", "dependencies": { "express": "^4.17.1", "puppeteer": "^9.1.1" } } Procfile: web: node index.js index.js: const express = require("express"); const puppeteer = require("puppeteer"); const app = express(); app.set("port", process.env.PORT || 5000); const browserP = puppeteer.launch({ args: ["--no-sandbox", "--disable-setuid-sandbox"] }); app.get("/", (req, res) => { // FIXME move to a worker task; see https://devcenter.heroku.com/articles/node-redis-workers let page; (async () => { page = await (await browserP).newPage(); await page.setContent(`<p>web running at ${Date()}</p>`); res.send(await page.content()); })() .catch(err => res.sendStatus(500)) .finally(async () => await page.close()) ; }); app.listen(app.get("port"), () => console.log("app running on port", app.get("port")) ); Set up Install Heroku CLI and create a new app with Node and Puppeteer buildpacks (see this answer): heroku create heroku buildpacks:add --index 1 https://github.com/jontewks/puppeteer-heroku-buildpack -a cryptic-dawn-48835 heroku buildpacks:add --index 1 heroku/nodejs -a cryptic-dawn-48835 (replace cryptic-dawn-48835 with your app name) Deploy: git init git add . git commit -m "initial commit" heroku git:remote -a cryptic-dawn-48835 git push heroku master Verify that it worked with curl https://cryptic-dawn-48835.herokuapp.com. You should see something like <html><head></head><body><p>web running at Wed May 19 2021 02:12:48 GMT+0000 (Coordinated Universal Time)</p></body></html> Share