Developer Utility
The Cookie Arsenal
Powerful one-click tools for browser state management. Drag the items to your bookmarks bar or copy the code to perform instant debugging and auditing.
Drag to Bookmarks Bar
100% Client-Side JS
View Cookies
Ready to deploy
Shows all current domain cookies in a simple alert box.
javascript:alert(document.cookie.split(';').join('\n\n'))
Delete All Cookies
Ready to deploy
Force expires every cookie on the current domain and path.
javascript:(function(){var cookies=document.cookie.split(';');for(var i=0;i<cookies.length;i++){var cookie=cookies[i];var eqPos=cookie.indexOf('=');var name=eqPos>-1?cookie.substr(0,eqPos):cookie;document.cookie=name+'=;expires=Thu, 01 Jan 1970 00:00:00 GMT;path=/';document.cookie=name+'=;expires=Thu, 01 Jan 1970 00:00:00 GMT;path=/;domain='+window.location.hostname.replace(/^www\./,'')}alert('All cookies cleared!')})();
Clear Storage
Ready to deploy
Wipes LocalStorage and SessionStorage completely.
javascript:(function(){localStorage.clear();sessionStorage.clear();alert('LocalStorage & SessionStorage cleared!')})();
Quick Editor
Ready to deploy
Opens a simple prompt to add or edit a specific cookie.
javascript:(function(){var n=prompt('Cookie Name:'),v=prompt('Cookie Value:');if(n&&v){document.cookie=n+'='+v+';path=/';alert('Cookie Set!')}else{alert('Cancelled')}})();
Privacy Pro Tip
These bookmarklets only run on the active tab and current domain. They are a great way to verify if a site is properly handling session expiry or if you just want to quickly reset your state for local testing.