The graph editor gives you full control over the speed and smoothness of your animations — it’s where the real polish happens.
Steps to use the graph editor
Select a layer with keyframes and click the Graph Editor button in the timeline. You’ll see your animation curve displayed.

Switch between Value and Speed Graphs using the dropdown at the bottom — they show different things.

Drag the bezier handles on your keyframes to smooth, speed up, or slow down motion however you want.

One more thing
If your graph looks flat or weird, you might be in the wrong mode — toggle between Value and Speed graphs until you see curves that make sense for your animation.
Related how-tos
How to add keyframes in After Effects
How to use easing for smooth animation in After Effects
How to stretch keyframes in time in After Effects
Need more help? Explore all our How-tos in one place.