A pie chart animation is a short video of a pie chart building itself: the slices sweep round the circle one after another until it is whole, and each slice's percentage counts up as it arrives. Editors lay it over a video to show how something is split: a budget, a survey result, where income or traffic comes from.
This maker is a pie chart animation generator that runs in your browser. It builds the chart from the labels and values you type, from two slices up to eight, works out each slice's share, rounds the percentages so they add up to exactly 100, and lists them in a legend that fills in row by row as the slices land. Switch Shape to Donut and the chart becomes a ring with the total counting up in the middle.
A pie reads best with a handful of slices. If you have more than five or six, add the small ones together as Other, and set Slice order to Largest first so the slices run from biggest to smallest, clockwise from the top.