prefers-reduced-data media queryLimited availability
The prefers-reduced-data CSS media query detects whether the user has a preference for using less network traffic. For example, you can use this media query to avoid loading large font files and use a system font instead.
Not yet supported in all major browsers — check the table and provide a fallback.
Browser support
DesktopChrome
✕Not supportedup to 155
Current: 155Edge
✕Not supportedup to 154
Current: 154Firefox
✕Not supportedup to 157
Current: 157Safari
✕Not supportedup to 27
Current: 27MobileChrome Android
✕Not supportedup to 155
Current: 155Firefox Android
✕Not supportedup to 157
Current: 157Safari iOS
✕Not supportedup to 27
Current: 27How to use
Not supported in Chrome, Edge, Firefox, Safari, Chrome Android, Firefox Android, Safari iOS. Use feature detection below and provide a fallback (or a polyfill) for those browsers.
Example
Full syntax and examples are on MDN: prefers-reduced-data.
Feature detection
There’s no simple runtime check for this feature; rely on the support table and test in your target browsers.