Export indexeddb for a website to JSON. Use by pasting into the browser console of the website. Should work in Chromium-based browsers. Note: this code was generated using ChatGPT and may contain bugs.

indexeddb_export.js

// WARNING: this code was generated using ChatGPT. Use at your own risk.

function exportIndexedDBToJSON() {
  indexedDB.databases().then(async (databases) => {
    for (const dbInfo of databases) {
      const dbName = dbInfo.name;

      try {
        const db = await new Promise((resolve, reject) => {
          const request = indexedDB.open(dbName, dbInfo.version);

          request.onsuccess = (event) => resolve(event.target.result);
          request.onerror = (event) => reject(event.error);
        });

        const objectStoreNames = Array.from(db.objectStoreNames);

        const databaseData = {};

        for (const storeName of objectStoreNames) {
          const transaction = db.transaction([storeName], 'readonly');
          const objectStore = transaction.objectStore(storeName);

          const records = await new Promise((resolve, reject) => {
            const getAllRequest = objectStore.getAll();

            getAllRequest.onsuccess = (event) => resolve(event.target.result);
            getAllRequest.onerror = (event) => reject(event.error);
          });

          records.forEach((record) => {
            for (const key in record) {
              const value = record[key];

              if (value instanceof Blob) {
                const reader = new FileReader();

                reader.onload = (blobEvent) => {
                  record[key] = blobEvent.target.result.split(',')[1];
                };

                reader.readAsDataURL(value);
              }
            }
          });

          databaseData[storeName] = records;

          console.log(`Exported data from ${dbName}.${storeName}:`, records);
        }

        // Log the exported data with object store names
        if (Object.keys(databaseData).length > 0) {
          console.log(`Exported data from ${dbName}:`, databaseData);

          // Create a Blob containing the JSON data
          const blob = new Blob([JSON.stringify(databaseData, null, 2)], { type: 'application/json' });

          // Create a download link
          const downloadLink = document.createElement('a');
          downloadLink.href = URL.createObjectURL(blob);
          downloadLink.download = `${dbName}_export.json`;

          // Trigger the download
          downloadLink.click();
        }
      } catch (error) {
        console.error(error);
      }
    }
  });
}

exportIndexedDBToJSON();