SVG — the SVG format — is essentially distinct from JPG. Whereas JPG stores images as a grid of pixels, SVG encodes illustrations as mathematical definitions of geometric shapes. Which means SVG graphics can be displayed at any size — from a 16x16 pixel favicon to a massive print — with no quality loss.
Converting JPG to SVG is a technique known as image vectorization, and it is particularly valuable for illustrations and flat artwork.
Prior to converting JPG to SVG, it is important to realize how the process works. A JPG is a bitmap image — a static grid of pixels. SVG files are a mathematical image — a collection of paths that a browser displays as the image.
Results are excellent for clean images with clear shapes and few colors here — logos, icons, silhouettes and flat artwork. It works less well for detailed photographs with fine detail.
For professional results, Illustrator's Image Trace tool offers the most precision. Open your JPG in Illustrator, highlight the image, access the Image Trace panel and select an appropriate preset.
Try alljpgconverters.com for a 100 percent free browser-based JPG to SVG tool requiring no software needed.