Evil Icons - Simple and clean SVG icon pack
Sketch - Professional digital design for Mac.
Potlab Icons - Animated SVG icons for web projects
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Vivid JS - A highly customizable, open source SVG icons library
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.