Chrome DevTools: View persistent storage, Service Workers and Web App Manifests from the Application Panel

Introduction

The Application Panel in DevTools shows resources which your page is using.

In this Panel, you can interact with most data. For example:

• Edit/Clear persistent storage.
• Start/Update/Unregister Service workers.
• Export images or copy an image as a Data URI.

How to use this

Use the Command Menu (Cmd + Shift + P) to select Show Application.

Once the Application Panel open, you can observe the following panes:

• Application
  • Manifest - View the web app manifest related to progressive web apps
  • Service Workers - View and debug Service Workers which the page might be using
  • Clear storage - View storage stats, and clear all forms of storage including cookies
• Storage
  • Local Storage - View and edit Local Storage
  • Session Storage - View and edit Session Storage
  • IndexedDB - View and edit any IndexedDB databases which the page might be using
  • Web SQL - View and edit any Web SQL databases which the page might be using
  • Cookies - View per-origin cookie information and related properties. Includes edit abilities
• Cache
  • Cache Storage - View cache storag from the page
  • Application Cache - View information on the Application Cache
• Background Services
  • Background fetch - Similar to the Service Worker offerings, view background fetch details
  • Background Sync - Similar to the Service Worker offerings, view background sync details
  • Notifications - View notification information
  • Payment Handler - Debug payment handlers and view their event information
  • Periodic Background Sync - View information on background sync
  • Push Messaging - View push messaging information
• Frames
  • View frames and other resources which a page may be using, including from iframes

Extra

You can use the Application Panel to view a number of interesting web page properties, such as:

• Web App Manifest details.
• Service Workers.
• Persistent Storage (Local storage, session storage, IndexedDB).
• Individual resource content.