What are some alternatives?
Inkscape - Inkscape is a free, open source professional vector graphics editor for Windows, Mac OS X and Linux.
Adobe Illustrator - Adobe Illustrator is a vector graphics editor.
Affinity Designer - Professional creative software, exclusively for Mac.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
CR8tracer - Convert bitmap images into monochrome vector formats
Figma - Team-based interface design, Figma lets you collaborate on designs in real time.