coderef

linear() easingBaseline · Widely available

The linear() easing function for animations and transitions interpolates linearly between the control points, and can be used to approximate complex easing functions, such as a bounce effect.

Supported in all major browsers for at least 30 months — safe to use without fallbacks. Baseline since Dec 11, 2023. Widely available since Jun 11, 2026.

How to use ↓Compare browsers

Browser support

DesktopChrome
1–112Not supported
113+Supportedsince May 2, 2023
Current: 155
Edge
12–112Not supported
113+Supportedsince May 5, 2023
Current: 154
Firefox
1–111Not supported
112+Supportedsince Apr 11, 2023
Current: 157
Safari
1–17.1Not supported
17.2+Supportedsince Dec 11, 2023
Current: 27
MobileChrome Android
18–112Not supported
113+Supportedsince May 2, 2023
Current: 155
Firefox Android
4–111Not supported
112+Supportedsince Apr 11, 2023
Current: 157
Safari iOS
1–17.1Not supported
17.2+Supportedsince Dec 11, 2023
Current: 27

How to use

This feature is Baseline widely available — use it freely, no fallback needed.

Example

Full syntax and examples are on MDN: linear.

Feature detection

There’s no simple runtime check for this feature; rely on the support table and test in your target browsers.

Documentation (MDN)

Specification