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Cookie/Localstorage Manager

Import or export localstorage and cookies of any site

  1. // ==UserScript==
  2. // @name         Cookie/Localstorage Manager
  3. // @namespace    http://tampermonkey.net/
  4. // @version      1.0
  5. // @description  Import or export localstorage and cookies of any site
  6. // @grant        GM_registerMenuCommand
  7. // @grant        GM_setClipboard
  8. // @include      *
  9. // @license      MIT
  10. // ==/UserScript==
  11. function exportAll() {
  12.     let data = {
  13.         localStorage: {},
  14.         cookies: {}
  15.     };
  16.  
  17.     for (let i = 0; i < localStorage.length; i++) {
  18.         const key = localStorage.key(i);
  19.         data.localStorage[key] = localStorage.getItem(key);
  20.     }
  21.  
  22.     const cookies = document.cookie.split('; ');
  23.     cookies.forEach(cookie => {
  24.         const [name, value] = cookie.split('=');
  25.         const cookieName = name.trim();
  26.         const cookieValue = value.trim();
  27.  
  28.         const cookieAttributes = document.cookie.split('; ').find(c => c.startsWith(cookieName));
  29.         const attributes = cookieAttributes ? cookieAttributes.split('; ').slice(1) : [];
  30.  
  31.         let expires = attributes.find(attr => attr.trim().toLowerCase().startsWith('expires='));
  32.  
  33.         data.cookies[cookieName] = {
  34.             value: cookieValue,
  35.             expires: expires ? expires.split('=')[1] : null
  36.         };
  37.     });
  38.  
  39.     const dataString = JSON.stringify(data);
  40.     GM_setClipboard(dataString);
  41.     alert('localStorage and cookies copied to clipboard!');
  42. }
  43.  
  44. function importAll() {
  45.     const dataString = prompt('Paste the stringified JSON data to import into localStorage and cookies:');
  46.     if (dataString) {
  47.         try {
  48.             const data = JSON.parse(dataString);
  49.  
  50.             if (data.localStorage) {
  51.                 Object.entries(data.localStorage).forEach(([k, v]) => {
  52.                     localStorage.setItem(k, v);
  53.                 });
  54.             }
  55.  
  56.             if (data.cookies) {
  57.                 Object.entries(data.cookies).forEach(([k, { value, expires }]) => {
  58.                     let cookieString = `${k}=${value}; path=/`;
  59.                     if (expires) {
  60.                         const expirationDate = new Date(expires);
  61.                         cookieString += `; expires=${expirationDate.toUTCString()}`;
  62.                     }
  63.                     document.cookie = cookieString;
  64.                 });
  65.             }
  66.  
  67.             alert('localStorage and cookies imported successfully!');
  68.         } catch (e) {
  69.             alert('Failed to import data. Please make sure the input is valid JSON. Error: ' + e.message);
  70.             console.error(e);
  71.         }
  72.     } else {
  73.         alert('No data was entered.');
  74.     }
  75. }
  76.  
  77. GM_registerMenuCommand("Copy localStorage and Cookies to Clipboard", exportAll);
  78. GM_registerMenuCommand("Import localStorage and Cookies from Clipboard", importAll);