Scalable Vector Graphics — the SVG format — is fundamentally different from JPG. JPG encodes photos as a pixel grid, SVG saves graphics as mathematical descriptions of geometric shapes. This means SVG graphics can be displayed at every size — from a tiny icon to a billboard — without any loss of sharpness.
Converting JPG to SVG is a technique referred to as raster to vector conversion, and it is very beneficial for icons and clean graphics.
Prior to converting JPG to SVG, it is important to understand what the conversion actually does. JPG files are a bitmap image — a static grid of pixels. SVG files are a scalable image — a series of geometric shapes which software renders as the image.
Results are excellent for clean images with defined shapes and limited colors — icons, logos, symbols and line art. It works less well for detailed photographs with fine detail.
For professional results, Illustrator's Image Trace function gives the most flexibility. Open your JPG in Illustrator, highlight the image, access the Image Trace settings here and choose an suitable option.
Visit alljpgconverters.com for a totally free online JPG to SVG converter without software needed.