The indexedDB read-only property of the WindowOrWorkerGlobalScope mixin provides a mechanism for applications to asynchronously access the capabilities of indexed databases.


var IDBFactory = self.indexedDB;


An IDBFactory object.


var db;
function openDB() {
 var DBOpenRequest ='toDoList');
 DBOpenRequest.onsuccess = function(e) {
   db = DBOpenRequest.result;


Specification Status Comment
Indexed Database API 2.0
The definition of 'indexedDB' in that specification.
Editor's Draft Defined in a WindowOrWorkerGlobalScope partial in the newest spec.
Indexed Database API
The definition of 'indexedDB' in that specification.
Recommendation Initial definition.

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 23webkit
(Yes) 10 moz
16.0 (16.0)
52.0 (52.0)[1]
10, partial 15 7.1
Available in workers (Yes) (Yes) 37.0 (37.0) ? (Yes) ?
Feature Android Edge Firefox Mobile (Gecko) Firefox OS IE Phone Opera Mobile Safari Mobile
Basic support 4.4 (Yes) 22.0 (22.0)
52.0 (52.0)[1]
1.0.1 10 22 8
Available in workers (Yes) (Yes) 37.0 (37.0) (Yes) ? (Yes) ?

[1] indexedDB now defined on WindowOrWorkerGlobalScope mixin.

See also

Document Tags and Contributors

 Contributors to this page: jpmedley, nmve, arronei, chrisdavidmills, libbymc, teoli, fscholz
 Last updated by: jpmedley,