Virtual whiteboard for sketching hand-drawn like diagrams
HTML5 canvas based smooth signature drawing
Drawing, graphics conversion, software development, administration.
very good CAD software
Easy and smart classic color picker
InkWell is a doodling app based on Kotlin developed in Android
a race scenario drawing tool
Pencil2D is a cross-platform animation/drawing application.
Illus is a minimal drawing program based on Python and Tkinter.
A hybrid graphics editor and programming environment
Madeline 2.0 Pedigree Drawing Engine (PDE)
A multiuser web-site for drawing and conversation.
dedalo is a 2d cad drawing software written in python3.