https://inkscape.org/

Inkscape banner"Inkscape is an open-source vector graphics editor similar to Adobe Illustrator, Corel Draw, Freehand, or Xara X.

What sets Inkscape apart is its use of Scalable Vector Graphics (SVG), an open XML-based W3C standard, as the native format."

In short, if you want any form of professional looking graphics whether in print or web based. This will help you create it.

I love Inkscape and it flexibility. its great for kids in secondary school (11+), through to advanced users taking a degree in Graphics