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PWA and Offline JavaScript Projects
A progressive web app installs like a normal app, opens without internet and can send notifications. These seven projects show how, one feature at a time: caching with a service worker, syncing when the connection comes back, reminders, saving real files, receiving shares from other apps, keeping tabs in sync and loading pages before you click.
021. Offline-first Todo PWA
A todo app you can install that works with no internet
022. Expense Tracker PWA
A spending tracker with charts that syncs when back online
023. Reminder Notifications
A reminder app with Done and Snooze buttons in the notification
024. Local Markdown Editor
A Markdown editor that saves real files on your disk
025. Share Target Link Saver
A reading list app that appears in your phone's share menu
026. Multi-tab Sync
Open it in several tabs and watch them stay in sync