Web Storage Inspector
Check web storage availability and learn how to inspect storage in developer tools.
🔧 How to Inspect Storage in DevTools
- Open Developer Tools (F12 or Ctrl+Shift+I)
- Go to Application tab (Chrome/Edge) or Storage tab (Firefox)
- Expand Local Storage or Session Storage
- Click on the domain to view stored data
- Double-click values to edit, right-click to delete
Web Storage API Methods
setItem(key, value)Store a key-value pairgetItem(key)Retrieve value by keyremoveItem(key)Delete a specific itemclear()Remove all stored itemskey(index)Get key name by indexlengthNumber of stored itemsInspecting Web Storage
Web storage inspection is essential for debugging web applications. Developer tools provide comprehensive interfaces for viewing, editing, and managing stored data. This guide covers storage availability checking and inspection techniques.
Some privacy settings, browser modes (like incognito), or extensions may block or limit web storage access. Checking availability before using storage prevents runtime errors.
Checking Storage Availability
Always verify storage availability before use. Private browsing modes may throw errors when accessing storage. Wrap storage access in try-catch blocks or check typeof before access.
Storage Events
The 'storage' event fires when storage changes in another tab/window from the same origin. This enables cross-tab communication. Listen with window.addEventListener('storage', handler).
Debugging Storage Issues
Common issues include: quota exceeded errors, blocked storage in private mode, cross-origin access attempts, and JSON parsing errors when storing objects. DevTools help identify these problems.
Best Practices
Use try-catch when accessing storage. Store JSON for complex data. Clear unused data to respect quota. Provide fallbacks when storage is unavailable. Test in private browsing mode.