Inkscape is a free, cross-platform software vector graphics editor, licensed under the GNU General Public License.
Inkscape uses SVG as its native vector format and uses GIMPs .gpl file format for palettes. Extensions can be written in C, C++, XSLT, Python, or shell scripts. It has a command-line interface which is useful for processing vector collections such as PDFs.
Inkscape supports many advanced SVG features (markers, clones, alpha blending, etc.) and great care is taken in designing a streamlined interface. It is very easy to edit nodes, perform complex path operations, trace bitmaps and much more. We also aim to maintain a thriving user and developer community by using open, community-oriented development.