What's it called · Animation & motion 04

Ease in-out

An easing that starts slowly, speeds up in the middle, then slows to a stop.

Compare the S-shaped curve and equal-time dots clustered at both ends with 'Linear'.

Often confused with

• Ease in: An easing that is slow only at the start, rather than at both ends
• Ease out: An easing that starts fast without a slow opening, then slows to a stop
• Linear: An easing with a constant speed rather than slower motion at the start and end