Free ebookProgressive Web Apps (PWA) in Practice: Offline-First, Installable Web Apps with Service Workers and Web App Manifests

Course Description

Progressive Web Apps (PWA) in Practice is a free ebook course for web developers who want to build offline first, installable web apps that feel fast and reliable on any device. In the Information Technology and Web Development space, PWAs bridge the gap between websites and native apps, helping you deliver great user experiences with modern browser capabilities while keeping your workflow on the web.

You will learn how to define PWA product goals, validate readiness with practical checklists, and set up a project that supports an app shell architecture and resilient offline UX patterns. As you progress, you will configure a web app manifest for installable experiences, control the service worker lifecycle and update behavior, and design caching strategies that match each asset type. You will also improve routing with navigation fallbacks and purpose built offline pages so your app remains usable even when networks fail.

The course goes beyond basics by guiding you through real world data and reliability needs. You will compare storage options such as IndexedDB, Cache Storage, and localStorage, implement queued requests with background sync, and understand push notifications fundamentals along with user permission UX that respects trust. Performance engineering is covered in a practical way, including critical path optimization, lazy loading, and media optimization to keep load times low and interactions smooth.

To help you ship with confidence, you will apply security and reliability practices such as HTTPS, safe service worker patterns, and robust error handling. You will debug service workers and caches using Chrome DevTools, run Lighthouse audits, and use measurable PWA quality gates to verify progress. The ebook also prepares you for cross browser and platform constraints, including iOS quirks, and shows how accessibility fits into offline capable, installable web apps.

Finally, you will follow deployment workflows that fit modern teams, including static hosting, CDN headers, versioning, and rollback strategies. A capstone build brings everything together in a complete offline first local events or inventory tracker, supported by exercises, mini projects, quizzes, and a troubleshooting playbook. Start the course today and build a PWA you can proudly ship.