skribbl - Word guessing based on drawing.
miniPaint - Online graphics editing tool use HTML5 technologies like Canvas, Offline support, Drag and Drop.
LetsDraw.It - Guess and Draw, Drawing Battle, Pictionary, Copy picture - online drawing games where you can compare your skill with others.
JugiPaint - JugiPaint is a painting software with diverse tools for various types of illustration work.
gartic.io - Draw, guess, and win!
Ultimate Paint - Ultimate Paint is a full-featured 32-bit Windows graphics program for image creation, viewing and...