Moving from Dexie.js

Dexie.js is a database: versioned schemas, indexes, bulk writes, live queries. Strata Storage is a key-value layer. If your queries lean on indexes or your tables hold many thousands of rows, stay on Dexie: storage.query() reads and decodes every key in the store rather than using an index. This guide fits a smaller case, where Dexie ended up holding settings, drafts and caches and you also need native stores.

The calls

Dexie.js	Strata Storage
db.table('drafts').put(row)	storage.set('draft:' + row.id, row)
db.table('drafts').get(id)	storage.get('draft:' + id)
db.table('drafts').delete(id)	storage.remove('draft:' + id)
db.table('drafts').where(...)	storage.query({ type: 'draft', ... })
liveQuery(...)	storage.subscribe(callback)
db.version(n).stores(...)	No equivalent: there's no schema

Queries match fields on the value you stored, not its key or tags, so a type field on each value is how you select one kind of record (query guide).

Copy one table

import Dexie from 'dexie';
import { defineStorage } from 'strata-storage';

interface Draft {
  id: number;
  title: string;
  updatedAt: number;
}

const db = new Dexie('app');
db.version(1).stores({ drafts: 'id,updatedAt' });

export const storage = defineStorage({ defaultStorages: ['indexedDB', 'memory'] });

export async function moveDrafts(): Promise<void> {
  if (await storage.get<boolean>('moved:dexie-drafts')) return;
  const rows = await db.table<Draft, number>('drafts').toArray();
  for (const row of rows) {
    await storage.set(`draft:${row.id}`, { ...row, type: 'draft' }, { tags: ['drafts'] });
  }
  await storage.set('moved:dexie-drafts', true);
}

Reading it back

import { defineStorage } from 'strata-storage';

const storage = defineStorage({ defaultStorages: ['indexedDB', 'memory'] });
const weekAgo = Date.now() - 7 * 24 * 60 * 60 * 1000;

const recent = await storage.query<{ title: string }>({ type: 'draft', updatedAt: { $gt: weekAgo } });
console.log(recent.map(({ key, value }) => `${key}: ${value.title}`));

await storage.clear({ tags: ['drafts'] });

Results aren't sorted by an index, so sort them yourself. Time a query against a realistic amount of your data before you delete the Dexie code.

Dexie.js as we checked it

Last checked 7 Nov 2026. "Not stated" means the pages we checked don't mention it, not that the library can't do it. Check Dexie.js yourself, or see the side-by-side page.

Store or capability	Dexie.js	Strata Storage
localStorage	Not stated on the pages we checked	Yes
IndexedDB	Yes (source, 7 Nov 2026)	Yes
sessionStorage	Not stated on the pages we checked	Yes
Cookies	Not stated on the pages we checked	Yes
URL parameters as a store	Not stated on the pages we checked	Yes
iOS Keychain	Not stated on the pages we checked	Yes
Android secure storage (Keystore-backed)	Not stated on the pages we checked	Yes
Native preferences (UserDefaults / SharedPreferences)	Not stated on the pages we checked	Yes
Web and native stores behind one API	Not stated on the pages we checked. The README says it supports Capacitor for iOS and Android apps, meaning IndexedDB inside the webview; no native store is described	Yes
No runtime dependencies	Yes (source, 7 Nov 2026)	Yes

Package fact	Dexie.js	Strata Storage
Licence	Apache-2.0 (source)	MIT (source)
npm version	4.4.7	3.1.4
Bundle size	31,094 bytes gzipped, 97,946 minified, version 4.4.7, 7 Nov 2026 (source)	21,468 bytes gzipped, 79,645 minified, version 3.1.4, 7 Nov 2026 (source)
Weekly downloads	3,400,609, 31 Oct 2026 to 6 Nov 2026 (source)	486, 31 Oct 2026 to 6 Nov 2026 (source)