SVG — the SVG format — is completely different from JPG. While JPG stores images as a grid of pixels, SVG stores images as mathematical descriptions of paths and colors. Meaning SVG images scale to any size — from a 16x16 pixel favicon to a massive print — without pixelation.
Changing JPG to SVG is a operation called vectorization, and it is particularly valuable for illustrations and flat artwork.
Prior to converting JPG to SVG, it is essential to understand what the conversion actually does. JPG files are a pixel-based image — a static grid of pixels. SVG files are a mathematical image — a collection of paths that a browser displays as the graphic.
The conversion works great for simple images with distinct shapes and few colors — logos, icons, silhouettes and flat artwork. Results are poor for photographic images with thousands of colors.
For best output, Illustrator's Image Trace function provides the most flexibility. Open check here your JPG in Illustrator, highlight the image, access the Image Trace panel and pick an appropriate preset.
Use alljpgconverters.com providing completely free web-based JPG to SVG converter requiring no software required.