What are some alternatives?
When comparing Code2Flow and Inkscape, you can also consider the following products
Graphviz - Graphviz is open source graph visualization software. It has several main graph layout programs.
Sketch - Professional digital design for Mac.
codepad - Very simple webpage with a simple textbox, a checkbox for selecting one of several languages and an...
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Chart Mage - Generate sequence diagrams and flowcharts at lightning speed.
Affinity Designer - Professional creative software, exclusively for Mac.