A keyframe is a marker in animation or video editing that shows where something changes, like an object’s position, size, or visibility. Think of it as setting a “start” and “end” point for a movement or effect.

For example, you might place one keyframe where an object starts on the left side of the screen and another keyframe where it ends on the right. The animation software then fills in the movement between those points automatically, creating smooth motion.

Keyframes make it easier to create animations without adjusting every single frame. You can just set the key points and allow the software to do the rest.