guides

Create, edit and delete cookies

Create, edit and delete cookies, with expiry control — the daily bread of login debugging.

Edit any attribute

Open a cookie in the editor and change any part of it: the value, the domain and path it’s scoped to, its expiry, and the Secure, HttpOnly and SameSite flags. Edits apply to the live browser cookie right away, so you can change a value and reload the page to see the effect immediately — no export/import round trip for a quick tweak.

Create a cookie from scratch

You can also add a cookie that doesn’t exist yet: give it a name, value, domain, and path, set the flags you need, and it’s written to the browser. This is the fast way to reproduce a bug that only happens when a particular cookie is present — a feature-flag cookie, a consent cookie, a legacy session key — without hunting for a page that sets it.

Delete a cookie

Open a cookie in the editor and delete it from there. The change hits the live browser cookie immediately.

Deleting a session cookie logs you out of that site, and there’s no undo — export the cookies first if you might want the session back.

Control expiry

Set an exact expiry date on a cookie, or shorten an existing one. A handy recipe for simulating an expired session without waiting for a real timeout:

1. Open the site’s session cookie in the editor.
2. Set its expiry to about a minute into the future.
3. Wait for it to lapse, then reload the page.

The site now behaves exactly as it would after a real session timeout — redirect to login, refresh-token flow, whatever it does — but in seconds instead of hours.

Search and filter

The search box narrows the list by cookie name, domain, or value as you type, so you can pin down the one cookie you care about even in a profile with a lot of them — search works on real, long-lived profiles, not only on clean test ones.