Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
JugiPaint - JugiPaint is a painting software with diverse tools for various types of illustration work.
MyPaint - MyPaint is a fast, distraction-free, and easy painting tool for digital artists.
miniPaint - Online graphics editing tool use HTML5 technologies like Canvas, Offline support, Drag and Drop.
Fresh Paint - Microsoft's new painting software with more realistic brushes for Windows 10
RealWorld Paint - RealWorld Paint is an free portable image/photo/animation editor.