What tool to draw and generate Texture data like this Phaser example?

Hello all,

In this example, there are some nice pixel art images. What tool can we use to draw and generate texture data?


Example, this data will generate a chick.

    var chick = [

Bump. I am also interested to know if a tool like this exists. If not, creating this tool would not be a difficult task.

Yes, Jacob. Hope someone can give us the answer.