Chrome Web Store
Firefox Add-ons
Source CodeFull cookie attributes
Every cookie the browser would send, including HttpOnly ones page scripts cannot see. Value, domain, path, expiry, SameSite, Secure, Partitioned (CHIPS) and Duplicate.
Cookie & LocalStorage Editor
Quick edit cookies and localStorage of the site you are on.
View, add, edit, delete, import and export cookies and localStorage without leaving the page. Everything is scoped to the current site — no background process, no network access, no analytics.
Chrome 119+ · Firefox 128+ · No tracking.
Everything in two tabs
JSON-aware local storage
Keys with sizes and a JSON badge, a Format JSON switch, rename that moves the item, and all-or-nothing writes that leave the page as it was on failure.
Import & export
Lossless JSON or a Cookie header string for pasting into a request. Import reads both back; a paste with one unreadable cookie is refused as a whole.
Keyboard-first
1 / 2 to switch tabs, N to add, / to filter, E / I to export and import, Esc to close. It reopens on the tab you last used.
Private by design
Scoped to the current site. No network.
No background process, no network access, no analytics — the popup only reads and writes the tab you opened it on, and a write is refused if the tab has moved to another site since it was read.
Cookies for other domains are never written, exports are generated locally, and deleting anything — a single row or the whole site — always asks first.
Install
Grab it from the Chrome Web Store for Chrome, Edge, Brave and Opera, from Firefox Add-ons for Firefox — or read the source and load it unpacked.