Session Storage Viewer
View temporary data stored in your browser's session storage for this tab.
Stored Items
No data stored in session storage for this tab.
Session storage is unique to each browser tab.
Understanding Session Storage
Session storage provides temporary, tab-specific data storage in web browsers. Unlike local storage, session storage is automatically cleared when the browser tab is closed. Each tab has its own isolated session storage, making it ideal for temporary state that shouldn't persist or be shared between tabs.
This viewer displays all session storage entries for the current tab, showing keys, values, and sizes. Use it to understand what temporary data websites store during your browsing session.
When to Use Session Storage
Session storage suits temporary form data, single-session preferences, browsing history within an app, shopping cart data before login, and any state that should reset on each visit. It's perfect for "remember this for now, but forget it later" scenarios.
Tab Isolation
Each browser tab has separate session storage. Opening the same site in multiple tabs creates separate storage instances. This isolation prevents interference between tabs and provides natural scoping for temporary data.
Session Storage Limits
Like local storage, session storage typically offers 5-10MB capacity. The same quota management and error handling practices apply. Monitor usage to avoid QuotaExceededError.
Comparison with Local Storage
Session storage clears on tab close; local storage persists indefinitely. Session storage is tab-isolated; local storage is shared across tabs. Choose based on whether data should survive beyond the current session.
Use Cases
Common uses include: multi-step form wizards, temporary authentication states, undo/redo history, search filters that reset on close, and debug information during development.