Small Utility Lab

Inspect One Browser Origin

See what this page has stored.

Read and remove localStorage entries for the current page origin. Values are displayed locally after you click; other origins are inaccessible.

This page reads only after you select a button. Values can contain tokens or personal data; review them on screen and avoid sharing screenshots.

Local storage has not been read. Select the read button to inspect this page origin.

What this viewer can access

When you click the read button, the page reads the browser's localStorage for the current origin (scheme, host, and port). It does not inspect another website, cookies, sessionStorage, or browser-wide storage. Browser privacy settings or sandboxing can block access. Values and keys are inserted as text, not HTML.

Use Delete to remove one key. Clear all asks for confirmation before removing every localStorage key for this origin. These changes are immediate and cannot be undone here. For example, a test page on https://example.test can show that page's theme key but cannot show a different host's storage. Page content updated November 3, 2026.

Good to know

Does this read storage as soon as the page opens?

No. It reads localStorage only after you click the read button; reload the list to see later changes.

Can it inspect another website?

No. Browser same-origin rules limit access to the origin serving this page; other sites' storage is not available here.

What does Clear all remove?

After confirmation, it calls localStorage.clear() for this page's origin, removing all keys in that origin's localStorage area.

Does it show cookies or sessionStorage?

No. This viewer lists localStorage only. Cookies and sessionStorage are separate storage mechanisms.

Is it free?

Yes, during beta. Optional usage-credit plans are coming soon. Payments are not available and no credits are required.

Sources

Origin scope and Storage API behavior checked November 3, 2026.

How it works

1. Click Read this origin's localStorage. 2. Review keys and values for this page's origin. 3. Delete one key or confirm to clear this origin's localStorage.

Good to know

Does this read storage when I open the page?

No. It reads localStorage only after you click the read button; use refresh to inspect changes made later.

Can this page access another website’s data?

No. Browser same-origin rules limit it to the origin serving this page, including its scheme, host, and port.

Can I delete a single item or all items?

Yes. Delete removes one key; Clear all asks for confirmation before clearing this origin’s localStorage area.

Does it inspect cookies or sessionStorage?

No. It reads localStorage only; cookies and sessionStorage are separate browser storage mechanisms.

Is it free?

Yes, during beta. Optional usage-credit plans are coming soon. Payments are not available and no credits are required.