ARTS

Are you a designer?
https://www.myoats.com/create.aspx

Flame painter!
http://www.escapemotions.com/experiments/flame/index.php

Sumo Paint!
http://www.sumopaint.com/app/

MBlock Imagine, Program & Share.
https://scratch.mit.edu/starter_projects/
http://www.mblock.cc/download/

Sketch Toy!
http://sketchtoy.com/

Tuxpaint!
http://www.tuxpaint.org/?lang=ca

Draw IO
https://www.draw.io/

Draw ISLAND
http://drawisland.com/

QueeklyPaint (Spanish version)
http://www.queeky.com/app

Sketch IO
https://sketch.io/sketchpad/

Pencil Madness
http://pencilmadness.com/pencil_madness

Gliffy
https://www.gliffy.com/

Devian Art Muro
http://muro.deviantart.com/