asciiflow - Infinite ASCII diagrams, save to Google Drive, resize, freeform draw, and export straight to text/html.
PabloDraw - PabloDraw is an Ansi/Ascii text and RIPscrip vector graphic art editor/viewer with multi-user capabilities.
JavE - JavE (Java Ascii Versatile Editor) is a free Ascii Editor.
Charaster - Open-source ASCII art editor for browser-based, raster-style editing
Core2D - A multi-platform data driven 2D diagram editor.
Lekh Diagram - Lekh Diagram empowers you to express your idea on iPad and iPhone simply by sketching shapes with...