← Storage & Files
IndexedDB
Probing…IndexedDB is a web platform capability in the Storage & Files category. Transactional object database for large structured data. Supported in Chromium 24+, Firefox 16+, and Safari 10+.
Try it
Loading demo…
Code
const db = await new Promise((resolve, reject) => {
const req = indexedDB.open('shwcs-demo', 1)
req.onupgradeneeded = () => req.result.createObjectStore('records', { keyPath: 'key' })
req.onsuccess = () => resolve(req.result)
req.onerror = () => reject(req.error)
})
const tx = db.transaction('records', 'readwrite')
tx.objectStore('records').put({ key: 'greeting', value: 'hello' })Browser support
Chromium
24
Firefox
16
Safari
10
Frequently asked questions
Which browsers support IndexedDB?
Supported in Chromium 24+, Firefox 16+, and Safari 10+.
Does IndexedDB require HTTPS?
No. IndexedDB works without a secure context, though serving your site over HTTPS is always recommended.
What is IndexedDB used for?
Transactional object database for large structured data.
Can I try IndexedDB in my browser?
Yes. shwcs.net runs a live IndexedDB demo that probes your current browser and lets you try the API. Everything runs locally — nothing is sent anywhere.