SVGpage is an application that will render PNG images as SVG files or convert an SVG file to a PNG image. It uses an internal version of Autotrace. This is not a straight conversion to SVG (as there really is no such converter) but it does a fairly literal job with simple shapes, and renders a "painterly" effect for more photographic-style images.
F-Engrave generates g-code tool paths for CNC machines using CXF fonts, true type fonts (TTF), or a 2D DXF file. It can generate tool paths for engraving or v-carving text or a DXF design. The output of F-Engrave can be imported into EMC2, MACH3, or other machine controllers. F-Engrave output can be reopened by F-Engrave for later editing. F-Engrave designs can also be exported as SVG files.