The Chrome DevTools are a set of web authoring and debugging tools built into Google Chrome. Use the DevTools to iterate, debug and profile your site.
Lighthouse is an open-source, automated tool for improving the quality of your web apps. It is integrated directly into the Chrome DevTools Audits panel. You can also run Lighthouse from the command line or install the Chrome Extension.
Puppeteer is a Node library which provides a high-level API to control headless Chrome over the DevTools Protocol. It can also be configured to use full (non-headless) Chrome or Chromium.
Lit is a simple library for building fast, lightweight web components. You can use Lit to build web components that work in any framework, or with no framework at all.
Angular is a development platform for building applications across web, mobile, and desktop. With simple, declarative templates, reusable components, and support for all parts of the development experience, Angular makes it easy to write, test, and deploy high performing applications at any scale.