Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
Pixel Pix - Turn your photos into pixel art
GIMP - GIMP is a multiplatform photo manipulation tool.
Voxel Builder - Design and edit 3D voxel models in your browser.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Da Vinci Eye - Learn to draw by using your phone to overlay images for you to trace