What are some alternatives?
When comparing asciiflow and Charaster, you can also consider the following products
Playscii - Full-featured ASCII art and graphic editor and game creation tool
Ascii Generator 2 - Ascii Generator 2 (Ascgen2) is an application to convert images into high quality ASCII art - text...
REXPaint - REXPaint is a powerful and user-friendly ASCII art editor.
Monodraw - Monodraw allows you to easily create text-based art (like diagrams, layouts, flow charts) and...
ASCII Art Maker - A program for creating ASCII graphics from images and text.
PabloDraw - PabloDraw is an Ansi/Ascii text and RIPscrip vector graphic art editor/viewer with multi-user capabilities.