Support to be added for the CSS media query prefers-reduced-data. This will detect if the user has set "data saver" or other platform equivalent in their system, and give developers hooks into this user desire when loading or styling a page. This is for users who prefer to use minimal amounts of data on their device, and for developers to adapt to this preference.


Client hints and Javascript already have access, let's give it to CSS as well



Specification link

Unknown standards status - check spec link for status

Status in Chromium


Proposed (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

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Search tags

media query, prefers-reduced-data, reduce data, reduced data,

Last updated on 2022-04-09