openCanvas is not available for Mac but there are plenty of alternatives that runs on macOS with similar functionality. The best Mac alternative is Krita, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to openCanvas and many of them are available for Mac so hopefully you can find a suitable replacement. Other interesting Mac alternatives to openCanvas are Adobe Photoshop (Paid), MyPaint (Free, Open Source), Autodesk SketchBook (Freemium) and Clip Studio Paint (Paid).
Krita is a professional Free and open source (FOSS) painting program. It is made by artists that want to see affordable art tools for everyone withith concept art, texture and matte painters, illustrations and comics.
MyPaint is a fast painting program with an emphasis on full-screen use. It lets you focus on the art instead of the program. You work on your canvas with minimum distractions, bringing up the interface only when you need it.
MediBang Paint is a lightweight software for illustration and making comic books on Windows and Mac OS. Features -You can save multiple pages in one file. -Perspective grids for easily drawing backgrounds or speed lines.
FireAlpaca is the image editor that can be used readily and easily. We made it possible to provide the completely free download, in order for our products to be experienced by more users from all over the world. It is available for both Mac and Windows users!
Sketches is a perfect mix of beauty, simplicity and power, a truly unique combination you won't find anywhere else. Sketches is the ideal canvas, perfect for getting down ideas, illustrations, painting, anything your creative mind can imagine.
Corel Painter is a raster-based digital art application created to simulate as accurately as possible the appearance and behavior of traditional media associated with drawing, painting, and printmaking.
Fotor is a online picture editor and graphic designer, allowing you to use online photo editing tools, such as add filters, frames, text, stickers and effects…and apply design tools to make creative photo designs and graphics.