Scalable Vector Graphics — Scalable Vector Graphics — is essentially separate from JPG. JPG encodes pictures as a raster of pixels, SVG encodes illustrations as mathematical descriptions of shapes, lines and colors. This means SVG images scale to any size — from a small icon to a massive print — without quality loss.
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 understand what happens. JPG files are a pixel-based image — a fixed grid of pixels. SVG files are a mathematical image — a collection of paths that a browser displays as the graphic.
This works extremely well for uncomplicated graphics with distinct shapes and few colors — icons, logos, symbols and line art. It works less well for detailed photographs with fine detail.
For best output, Illustrator's website Image Trace function gives the most flexibility. Open your JPG in Illustrator, click the image, access the Image Trace panel and select an appropriate preset.
Use alljpgconverters.com providing completely free web-based JPG to SVG converter requiring no software needed.