What is the file extension for scalable vector graphics?

The file extension for scalable vector graphics is .svg. This format is specifically designed for vector graphics, which are images created using mathematical formulas rather than pixels, allowing them to be scaled infinitely without loss of quality. SVG files are often used in web development due to their lightweight nature and the ability to manipulate the graphics via CSS and JavaScript, making them suitable for responsive design.

In contrast, the other file extensions represent raster image formats. .jpg is a common format for photographs that uses lossy compression, making it less suitable for images requiring sharp details or scalability. .webp is a modern image format that provides lossless and lossy compression but is primarily used for raster images and not for vector graphics. .png is another raster format that supports transparency but is also pixel-based, which means it does not offer the scalability benefits of vector graphics. Thus, .svg is the correct choice for scalable vector graphics due to its unique attributes that align with the requirements of vector-based images.