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This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The unicodeRange property of the FontFace interface retrieves or sets the range of unicode codepoints encompassing the font. It is equivalent to the unicode-range descriptor.


var unicodeRangeDescriptor = FontFace.unicodeRange;
FontFace.unicodeRange = unicodeRangeDescriptor;


A CSSOMString containing a descriptor as it would appear in a style sheet's @font-face rule.


Specification Status Comment
CSS Font Loading Module Level 3
The definition of 'unicodeRange' in that specification.
Working Draft Initial definition.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Chrome Full support 35Edge ? Firefox Full support YesIE ? Opera Full support YesSafari Full support 10WebView Android Full support 37Chrome Android Full support 35Firefox Android Full support YesOpera Android Full support YesSafari iOS Full support YesSamsung Internet Android ?


Full support  
Full support
Compatibility unknown  
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.

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Contributors to this page: mdnwebdocs-bot, jpmedley
Last updated by: mdnwebdocs-bot,