A vector is a digital image made of mathematical paths defined by points, lines, and curves rather than a grid of pixels. Each shape carries properties like position, direction, and color, which lets the whole image be recalculated cleanly at any size.
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Because vectors aren't tied to a fixed resolution, they can be scaled up or down infinitely without losing sharpness or getting blurry. This makes them the go-to format for logos, icons, and illustrations that need to look crisp everywhere.

Why does Vector matter?

Designers rely on vector graphics whenever an asset needs to work across many sizes, from a favicon to a billboard, without redoing the artwork. Tools like Figma, Illustrator, and Sketch use vector paths, and formats like SVG, AI, and EPS store them.

Vector files are also typically smaller and easier to edit than raster images, since changing a shape's color, size, or curve just means adjusting its underlying math rather than repainting pixels. That's why UI icons and brand logos are almost always built as vectors.

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