URL: createObjectURL() static method

{{APIRef("File API")}}  {{AvailableInWorkers("window_and_worker_except_service")}} 

The createObjectURL() static method of the {{domxref("URL")}}  interface creates a string containing a blob URL pointing to the object given in the parameter.

For more information, see blob URLs.

To release an object URL, call {{domxref("URL.revokeObjectURL_static", "revokeObjectURL()")}} .

[!NOTE] This feature is not available in Service Workers due to its potential to create memory leaks.

Syntax

URL.createObjectURL(object)

Parameters

• object
  • : A {{domxref("Blob")}}  (such as a {{domxref("File")}} ) or {{domxref("MediaSource")}}  object to create an object URL for.

Return value

A string containing an object URL that can be used to reference the contents of the specified source object.

Examples

See Using object URLs to display images.

Specifications

{{Specifications}} 

Browser compatibility

{{Compat}} 

See also

• Blob URLs
• Using files from web applications
• Using object URLs to display images
• {{domxref("URL.revokeObjectURL_static", "URL.revokeObjectURL()")}} 
• {{domxref("HTMLMediaElement.srcObject")}} 
• {{domxref("FileReader.readAsDataURL()")}}