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Browser Cookie Viewer

View, search, and analyze browser cookies for the current domain with expiry and attribute details.

Tested tool guide Tested browser tools Checked August 16, 2026

What Browser Cookie Viewer does and how it behaves

Browser Cookie Viewer inventories cookies that the browser exposes to the page on the current domain. It lets you search the visible set and inspect each cookie's name, value, expiry information, and available attributes. Use it to determine whether a client-readable cookie is present and what the browser reports about it. The common surprise is that this is not a complete browser cookie jar: HttpOnly cookies and cookies outside the page's permitted domain or path scope do not appear.

How the result is produced

1

Current-page inventory

The viewer reads the cookies available to the page that is running the tool. It separates visible records for inspection and applies a search term to that list. The domain context is fixed by the loaded page. Searching changes which cookie records are displayed, not which sites the browser permits the page to inspect.

2

Expiry and attributes

For each visible cookie, the viewer presents its value plus expiry and attribute information available in the page's browser context. Expiry information helps distinguish persistent cookies from cookies that may last only for a session. Attribute details can clarify behavior, but an unreported field should not be treated as proof that the attribute was never set.

Good uses

  • Verify that a consent banner saved a client-readable preference cookie on the current site.
  • Search a crowded cookie list for a feature flag, locale, theme, or other front-end state key.
  • Inspect visible expiry and attribute details while diagnosing unexpected cookie persistence or resets.

Limits and checks

  • HttpOnly cookies are intentionally unavailable to page scripts, so an absent authentication cookie may still exist and be sent with requests.
  • Visibility depends on the current host, path, browser profile, and storage context; this is not an account-wide or browser-wide inventory.
  • Blank or unavailable expiry and attribute fields do not necessarily mean that the original Set-Cookie header omitted those settings.

Common questions

Why can I not find the login cookie?

Many authentication cookies are marked HttpOnly, which prevents page scripts from reading them. Such a cookie can still be stored and sent with matching HTTP requests while remaining absent here. This viewer cannot confirm every authentication cookie. Check the browser's developer storage panel or the server's Set-Cookie response when you need to inspect server-managed cookies.

Can I use this viewer to inspect cookies for another website?

No. Loading this tool does not grant access to another site's cookies, and entering another hostname as a search term cannot bypass browser isolation. It reports only cookies accessible in the tool page's current context. To inspect another site's stored cookies, use that site's browser developer tools in the relevant browser profile and storage context.

References and verification

The behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.

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