Software Tool : Inkscape Draw Freely 
License : Free/Open Source
Site : Inkscape

You are vector graphics lover ?, if yes then here is inkscape for you. The flexible drawing tool which makes it possible to create vector graphics on the go, and better part this tool is free and open source. Built-in effects and filters makes it more efficient for graphic designers, web designers or illustrators. Drawing tools, shape tools, text tools, curves and much more in one software. Available for linux, windows and mac. Get it and try now. Do not forget to share your thoughts on it via comment below.

(link sends you to author site. select platform and download)

Installation Tutorial & 1st Look :