Simple web based ascii flow diagram drawing tool, draw boxes, lines, arrows and type, then export straight to text/html.
Cost / License
- Free
- Open Source (MIT)
Application type
Platforms
- Online
- Global


Sites and apps similar to PseudoPen include ASCIIFlow, which is free and open source. Other options are Monodraw, MonoSketch, DIagrams Through Ascii Art and Asciio. In total there are seven Diagram Editors like PseudoPen for self-hosting, Mac, Linux and Windows.
Simple web based ascii flow diagram drawing tool, draw boxes, lines, arrows and type, then export straight to text/html.


Monodraw allows you to easily create text-based art (like diagrams, layouts, flow charts) and visually represent algorithms, data structures, binary formats and more. Because it's all just text, it can be easily embedded almost anywhere.




MonoSketch is a powerful ASCII sketching and diagramming app that lets you effortlessly transform your ideas into visually stunning designs.




DIagrams Through Ascii Art (ditaa) is a small, command-line tool built with Java to convert diagrams drawn ASCII art into bitmap graphics. ditaa interprets ascci art as a series of open and closed shapes, but it also uses special markup syntax...

This app lets you draw diagrams, tables, tree view, art and more using only characters. There are many stiles to choose from and multiple tools available to use such as:



