Building An Offline-Friendly Image Upload System

May 6, 2025

Flowchart illustrating an image upload process with offline support using Background Sync and Service Workers.

Poor internet connectivity doesn’t have to mean poor UX. With PWA technologies like IndexedDB, service workers, and the Background Sync API, you can build an offline-friendly image upload system that queues uploads and retries them automatically — so your users can upload stress-free, even when offline.

Source: Building An Offline-Friendly Image Upload System — Smashing Magazine