These are your bread-and-butter easings. They describe how quickly the animation accelerates or decelerates.

They come in four variations:

And they each come in 3 directions:

ease: "power2.in"    // starts slow, ends fast  
ease: "power2.out"   // starts fast, ends slow  
ease: "power2.inOut" // slow → fast → slow

The higher the number, the more intense the curve. You can almost hear the motion in these names.

in ramps in. out eases out. inOut glides through.


Play yourself to see how each of these easing types feels differently.

  • Power 1

  • Power 2

  • Power 3

  • Power 4

If this isn't that clear, play with different power easings on this circle, and you'll get the idea.

  • Power 1

  • Power 2

  • Power 3

  • Power 4

When to Use?

Use them when you want natural motion but still controlled and UI-friendly.

They’re usually great for button hover effects, modals sliding in, cards or panels entering the screen, toasts, and notifications.