SVG — vector graphics — is fundamentally distinct from JPG. Whereas JPG saves photos as a pixel grid, SVG saves images as geometric descriptions of paths and colors. Meaning SVG graphics can be displayed at any size — from a 16x16 pixel favicon to a billboard — without pixelation.
Changing JPG to SVG is a operation called vectorization, and it is very beneficial for illustrations and clean graphics.
Prior to converting JPG to SVG, it is important to realize what happens. A JPG is a raster image — a set 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 distinct shapes and few colors — icons, logos, symbols and illustrations. It does not work for photographic images with fine detail.
For professional results, Adobe Illustrator's Image Trace tool provides the convert image to vector svg most flexibility. Load the image in Illustrator, click the graphic, access the Image Trace panel and select an relevant setting.
Visit alljpgconverters.com for a totally free browser-based JPG to SVG tool without download required.