If you are a digital drawing artist of any level or just a fan of drawing, then the Autodesk SketchBook Pro is a recommended drawing software for you.
Canvas rotations, rulers, perspective grids, transformation options, and much more features are available for free.Well-structured interface to help you work on the drawing software pretty easy.You will get total control over the painting brushes to create easy and fast strokes and effects.Supports Windows, Mac, and Linux Operating Systems.Krita is loaded with easy-to-use workspace and tutorials for the beginners.Digital painting, drawing, illustrating, editing pictures, adding effects to your current work, and many more features you will get in Krita without paying anything. Krita is one of the best free drawing software available today. The SYSTEMAX PaintTool SAI is one of the best anime drawing software.
You can also download a 30-day free trial.SAI produces crisp edges to Stokes and thus results in a perfect software for line work.