Browser Storage Inspector
About Browser Storage
localStorage: Persists until cleared. Shared across tabs. ~5–10MB limit.
sessionStorage: Cleared when tab closes. Per-tab isolation. ~5MB limit.
Cookies: Sent with HTTP requests. Can be restricted by domain/path/expiry.
Privacy First: Your files are processed securely. Whenever possible, processing happens in your browser and files are never stored on our servers.
A developer tool for inspecting and managing all browser storage in one place. Three tabs cover localStorage, sessionStorage, and browser cookies. Each tab shows a table of all stored key-value pairs with their size. Click to expand long values or JSON objects (auto-formatted with indentation). Add new entries with a key-value form. Edit values inline with a textarea - changes are persisted immediately. Delete individual entries or clear all storage at once. Search/filter entries by key or value. JSON values are automatically detected and rendered with a JSON badge. Export the entire storage as a formatted JSON file. All operations work on the current page's storage context - useful for debugging web apps.
How to Use
- 1Select a tab: localStorage, sessionStorage, or Cookies
- 2Click Refresh to load the latest storage entries from the current page
- 3Use the search bar to filter entries by key or value
- 4Click the expand icon on any entry to see its full value (JSON values are pretty-printed)
- 5Click the edit icon to modify a value, or trash icon to delete; use the Add form to insert new entries
Features
- Three-tab interface: localStorage, sessionStorage, Cookies
- View all entries with key, value, and size in bytes
- Inline value editing - changes apply immediately to the browser
- Add new key-value entries with a form
- Delete individual entries or clear all at once
- Search/filter entries by key or value text
- JSON value auto-detection with pretty-printed expansion
- Export all storage as a formatted JSON file
- 100% browser-based - no data leaves your device
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