Scalable Vector Graphics — vector graphics — is fundamentally different from JPG. Whereas JPG encodes photos as a pixel grid, SVG stores graphics as mathematical definitions of paths and colors. This means SVG images scale to any size — from a 16x16 pixel favicon to a massive print — with no quality loss.
Converting JPG to SVG is a technique known as vectorization, and it is very beneficial for icons and simple graphics.
When converting JPG to SVG, it is essential to understand what happens. A JPG is a raster image — a set grid of dots. SVG files are a scalable image — a series of geometric shapes which software renders as the image.
This works extremely well for uncomplicated website graphics with defined shapes and limited colors — logos, icons, silhouettes and illustrations. It does not work for photographic images with fine detail.
For quality conversion, Adobe Illustrator's Image Trace tool gives the most flexibility. Load the image in Illustrator, highlight the image, open the Image Trace panel and choose an suitable option.
Try alljpgconverters.com offering a totally free web-based JPG to SVG solution requiring no download required.