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:
- Apple Safari (iOS)
- Apple Safari (macOS)
- Google Chrome (Android)
- Google Chrome (desktop)
- Microsoft Edge (desktop)
- Mozilla Firefox (Android)
- Mozilla Firefox (desktop)
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:
- Older devices and browser releases
- Browsers not covered by the Baseline definition, such as operating system web views
- Assistive technology, such as screen readers.
Baseline badges
Features listed as widely available have a consistent history of support in each of the Baseline browsers for at least 2.5 years.
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.
Features listed with limited availability are not yet available in all browsers.
Features listed with deprecated may be available in one or more browsers, but should not be used in development.
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.