Playscii - Full-featured ASCII art and graphic editor and game creation tool
PabloDraw - PabloDraw is an Ansi/Ascii text and RIPscrip vector graphic art editor/viewer with multi-user capabilities.
ASCII Art Maker - A program for creating ASCII graphics from images and text.
REXPaint - REXPaint is a powerful and user-friendly ASCII art editor.
asciiflow - Infinite ASCII diagrams, save to Google Drive, resize, freeform draw, and export straight to text/html.
Charaster - Open-source ASCII art editor for browser-based, raster-style editing