I made Rune, a composable React library for ASCII animations. It lets you drop in animated ASCII the same way you would an icon component.

Rune converts video into grids of colored ASCII characters that render directly as text in the browser. Brightness maps to character density (@ -> .), and output can be tuned for different levels of detail.

It’s designed to be lightweight and very performance focused, so animations stay smooth even at higher resolutions or if there many playing at a time!