Inkscape
Inkscape is an open source SVG editor with capabilities similar to Illustrator, CorelDraw, Visio, etc. Supported SVG features include basic shapes, paths, text, alpha blending, transforms, gradients, node editing, svg-to-png export, grouping, and more.
Inkscape’s main motivation is to provide the Open Source community with a fully XML, SVG, and CSS2 compliant SVG drawing tool. Additional planned work includes conversion of the codebase from C/Gtk to C++/Gtkmm, emphasizing a lightweight core with powerful features added through an extension mechanism, and establishment of a friendly, open, community-oriented development processes.