progressive-web-app

Offline web apps use service workers to intercept network requests and serve cached content when the connection is unavailable. Service workers, paired with a web manifest and caching strategy, enable your app to function without internet, load faster, and work on mobile and desktop platforms.

A web manifest file defines your app's metadata—name, icons, display mode—and signals to browsers that your app is installable. Combined with a service worker, the manifest enables users to install your web app directly on their home screen or app drawer.

Service workers are background scripts that manage install and fetch events, enabling caching strategies, offline support, and push notifications. They intercept network requests, serve cached responses, and keep your app responsive even without connectivity.

Yes. Service workers handle push notification subscriptions and delivery. Combined with offline caching and install prompts, push notifications let your PWA re-engage users across mobile and desktop without requiring an app store.

A cache-first strategy serves assets from the service worker's cache on every request, falling back to the network only when necessary. This approach maximizes offline availability and load speed while keeping your app responsive across all platforms.

Yes. A valid web manifest is a technical requirement for PWAs. It works with the service worker and controlled install prompt to meet PWA standards, enabling installability, offline functionality, and fast loading on mobile and desktop.