Open source image editor with non-destructive editing, 110+ filters, adjustment and text layers, support for smart objects and adjustment layers, cross-platform compatibility, and layer-based editing for flexible image composition.




The best free alternative to PaintTool SAI is Krita, which is also Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to PaintTool SAI and loads of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to PaintTool SAI are MediBang Paint, FireAlpaca, ibis Paint X and MyPaint.
Open source image editor with non-destructive editing, 110+ filters, adjustment and text layers, support for smart objects and adjustment layers, cross-platform compatibility, and layer-based editing for flexible image composition.




Unlock creativity with a massive brush collection and real-time effects. Blend oils, paint with vibrant watercolors, and enjoy vector and raster brushes on stylus-ready devices. Ideal for artists of all levels.




Milton is an open source application that features an infinite canvas. It feels raster-based but internally it works with vectors. It lets you export your work at any resolution.

GPS (aka Gimp Paint Studio) is a collection of brushes, patterns, color gradients, accompanying tool presets and dynamics. Tool presets are a simply saved tool options, highly useful feature of the GIMP.

KRESKA.art is a free online drawing and painting app that lets you create art directly in your web browser. It offers a simple interface, diverse brushes, and unique features like auto-color tracing. You can use it to sketch and paint without any downloads or installations.

Artecture enables you to sketch, draw and paint like never before. If you love to draw, regardless you are an amateur or a pro, this drawing app provides all the tools and brushes that you’d love.




HiPaint is a professional integrated drawing and coloring software specially designed for digital drawing creators. The intuitive and simple interface allows for easy and intelligent operation even for a newbie with a medium- or small-sized screen of a mobile device.




Verve (Dictionary: Energy and enthusiasm in the expression of ideas, especially in artistic performance or composition...) is the result of a curious idea I had to try using the graphics hardware to run a fluid dynamics simulation.

Unleash your inner creative with Fresh Paint – the ultimate canvas for your big ideas. Fresh Paint is a fun and easy to use painting app with the right tools for artists of all ages. We believe that brilliant, creative ideas can come from anyone, anytime.

Because beautiful tools make beautiful drawings, we endlessly refined Sketches brushes to create the most realistic drawing tools.



Pastela is a drawing app designed around the motto: "Draw out your creativity for the world."


Sketches is a perfect mix of beauty, simplicity and power, a truly unique combination you won't find anywhere else.






Tayasui Sketches is a great app for painting and drawing, but it doesn't have the animation features I was looking for.