Aseprite - Aseprite is an art program dedicated to the creation of pixel art.
Designify - Turn any photo into awesome, automatically
Pixel Art to CSS - Draw and animate pixel art, export the results to CSS
Paintwork-Sketch Drawing Pad - Paintwork is the perfect sketch drawing pad for artists of all levels.
Piskel - Piskel is a website where designers online create sprites or pixel art.
FIBE – Creative Graphic Design - FIBE is the best creative graphic design and editing application in the market.