Baseline (compatibility)

Baseline identifies the availability of web platform features across popular browsers, including APIs, CSS properties, and JavaScript syntax. Baseline describes web features as being either widely available or newly available. Features that do not meet the Baseline criteria are said to have limited availability.

Baseline considers support in the following browsers:

Baseline is a summary of browser support. It is not a substitute for accessibility, usability, performance, security, or other testing. Baseline may not tell you if a feature works with:

Baseline badges

Green widget with the checkmark: Baseline, widely available. Four browsers logos, all with checkmarks.

Features listed as widely available have a consistent history of support in each of the Baseline browsers for at least 2.5 years.

Blue widget with the checkmark: Baseline 2022, newly available. Four browsers' logos, all with checkmarks.

Features listed as newly available work in at least the latest stable version of each of the Baseline browsers, but may not work with older browsers and devices.

Grey widget with the cross: Limited availability. Four browsers' logos, two with checkmarks, two with crosses.

Features listed with limited availability are not yet available in all browsers.

Grey widget with a dotted diamond: Deprecated. Four browsers' logos, all with checkmarks.

Features listed with deprecated may be available in one or more browsers, but should not be used in development.

Red widget with a cross: Deprecated to be removed. Four browsers' logos, two with checkmarks, two with crosses.

Features listed with deprecated to be removed may be available in one or more browsers, but are due to be removed and should not be used in development.

See also