Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
VectorLogoZone - Vector logos in uniform sizes and layouts in the standard .SVG file format.
Sketch - Professional digital design for Mac.
AnyChart - Award-winning JavaScript charting library & Qlik Sense extensions from a global leader in data visualization! Loved by thousands of happy customers, including over 75% of Fortune 500 companies & over half of the top 1000 software vendors worldwide.
Adobe Illustrator - Adobe Illustrator is a vector graphics editor.
Highcharts - A charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application