cookieZ - Cookie Editor

View, edit, delete and block cookies. There are no ads, and nothing you do leaves your computer.

cookieZ is an open source cookie editor for Chrome. It's for people who build or test websites, and for anyone who can't log in to a site and has been told to clear its cookies. See, edit and delete the cookies on any site. Before anything is deleted, cookieZ shows how many cookies will go and which sites they belong to, then deletes exactly those. Some cookie editors say they've cleared everything when they've only cleared the site you're on, and many miss partitioned cookies. cookieZ deletes those too. WHAT IT DOES Viewing - Every cookie for the site you're on: name, value, domain, path, expiry and flags - Search by name, value, domain or path, or just one of them, such as domain:example.com - One-click filters, such as Secure, Session or Expiring soon, and checks for developers, such as cookies that scripts can read - Cookies with a well-known name say which company sets them and what for - Partitioned cookies that other companies set while you were on the site are shown with it - Sort by name, size, domain or expiry - Encoded values and dates shown in a form you can read - The table updates when the site changes a cookie, and a list shows what was added, changed, removed or expired Deleting - This page, this site and its subdomains, every site, the cookies you've ticked, or just what a search or filter is showing - The count and the list of sites are shown before you confirm - Undo your last delete, import or edit for 10 minutes - Mark a cookie as Kept and it's left out of every delete. One screen lists everything you've kept - Clear a site's stored data as well as its cookies, which often fixes a site you can't log in to - Reload the site in one click afterwards, so it starts afresh Editing - Change any field, or make a new cookie - Set an expiry in one click: 1 hour, 1 day, 1 week or 1 year - Duplicate a cookie, copy its name, or copy it as the line a server would send - Make partitioned cookies as well as ordinary ones - Edit JSON values laid out, and they're saved on one line again - Keep, stop keeping or change the expiry of all the cookies you've ticked at once - If Chrome would refuse a cookie, you're told why: it's over 4 KB, or its name starts with __Host- or __Secure- and breaks the rules for those - You're also told when Chrome changes what you set, such as its 400-day limit on expiry Blocking - One button to choose which cookies a site may set: allow them all, clear them when Chrome closes, block other companies' cookies, or block every cookie - Block other companies' cookies on every site at once, or block everything except the sites you allow - Block known trackers' cookies on every site, from a list built into cookieZ. Sites you allow still get them, and the trackers' own sites still work - See how many cookies cookieZ has cleared for you - Chrome does the blocking, so it works when cookieZ is closed, and removing cookieZ removes the rules - One screen lists every site with a rule, and you can save a copy to use on another computer Moving cookies - Export cookies to use in your own tools and tests, or to keep a copy. JSON and cookies.txt are both supported - Lock an export with a password, so only someone with the password can open it. The password is never saved - Import them again, or paste in a request copied from DevTools. You see a preview before anything is added - A plain warning when an export holds sign-in cookies, or when you're about to import someone else's - Copy cookies from one site to another, such as from a staging site to localhost - Compare a site's cookies with an earlier export, to see which are new, gone or changed Also - Alt+Shift+K opens it, / searches, N adds a cookie, the arrow keys move through cookies and Esc goes back - Opens in a full tab for long lists and long values - Works in incognito, kept separate from your normal cookies - Light and dark - Help is built in and works offline PRIVACY cookieZ makes no network requests. There are no ads and no analytics, it doesn't track you, and nothing leaves your computer. You don't have to take that on trust: open Chrome's DevTools, watch the Network tab and use it. The one web page it can open is this store's review page, and only when you click Leave a review. At install it asks for two permissions, cookies and storage. It asks for access to websites the first time you open it, and you can say no. Blocking and clearing a site's data need more permissions, each only asked for the first time you use it. SOURCE CODE All of it is on GitHub. It's plain JavaScript with no build step, so what you read is what runs: https://github.com/mwc0/cookie-manager BE CAREFUL Cookies can hold your logins. Don't paste a cookie's value or an export anywhere you don't trust, or someone could sign in as you. HELP https://cookiez.uk/support/ or support@cookiez.uk Privacy policy: https://cookiez.uk/privacy/ cookieZ is made by an independent developer in the UK.