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dfahlander/1.include-dexie-export-import.js

Last active October 6, 2025 20:20
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Export-IndexedDB-using-devtools-console
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1.include-dexie-export-import.js
// On any web page that stores things in IndexedDB,
// open devtools and in the console, write the following:
script1 = document.createElement('script');
script1.src = 'https://unpkg.com/[email protected]';
document.body.appendChild(script1);
script2 = document.createElement('script');
script2.src = 'https://unpkg.com/[email protected]';
document.body.appendChild(script2);
Raw
2.set-var-theDBName.js
// In devtools "applications" tab navigate to IndexedDB and find
// the name of the databases to export. Then write:
theDBName = 'the name of the database you want to export';
Raw
3.export-db.js
// Export the database into a Blob:
theDB = new Dexie(theDBName);
let {verno, tables} = await theDB.open();
theDB.close();
theDB = new Dexie(theDBName);
theDB.version(verno).stores(tables.reduce((p,c) => {p[c.name] = c.schema.primKey.keyPath || ""; return p;}, {}));
theBlob = await theDB.export();
@pianosaurus
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pianosaurus commented Oct 6, 2025

Importing a file exported using any of the above methods (assuming you can serve it, example uses localhost:8080):

await import('https://unpkg.com/[email protected]');
await import('https://unpkg.com/[email protected]');

data = await fetch('http://localhost:8080/db-name.json').then((r) => r.blob());
dexie = await DexieExportImport.peakImportFile(data);

Database name is restored from file, and doesn't have to be specified.

You can replace r.blob() with r.json() to get an object, if you want access to the data without actually restoring anything.

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