categories

Type Array of Strings
Mandatory No
Example
"categories": ["music"]

The categories member is an array of strings defining the names of categories that the application supposedly belongs to. There is no standard list of possible values, but the W3C maintains a list of known categories.

Note: categories are used only as hints for catalogs or stores listing web applications. Like search engines and meta keywords, catalogs and stores are free to ignore them.

Note: categories values are lower-cased by the stores and catalogs before processing, so "News" and "news" are treated as the same value. Developers are encouraged to use lower case in the first place.

Example

"categories": ["books", "education", "medical"]

Specification

Specification Status Comment Feedback

Web App Manifest
The definition of 'categories' in that specification.

Working Draft

Initial definition.

Web App Manifest Working Group drafts

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
categories
Experimental
Chrome ? Edge ? Firefox ? IE ? Opera ? Safari ? WebView Android ? Chrome Android ? Firefox Android ? Opera Android ? Safari iOS ? Samsung Internet Android ?

Legend

Compatibility unknown Ā 
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.