Apps similar to PaintTool SAI include Krita, which is free and open source. Other options are Adobe Photoshop, Affinity, Photopea and MyPaint. You're spoiled for choice with Digital Painting Tools like PaintTool SAI: we list more than 100 alternatives for Windows, Mac, iPad, Linux and the web.
Graintouch is a drawing app with the soul of print. Inspired by Risograph™ aesthetics, it lets you layer, blend, and create with the warmth of real ink—right on your screen.
ibis Paint is an easy yet powerful drawing app made with tools for sketching manga right at your fingertips.
Japan
AzPainter is a full color painting program for Linux. It's a lightweight tool with tablet pressure support, and provides basic functions such as selection, layers, filters. you can use it for painting, image editing, or pixel art making.
Japan
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.
Hungary
EU
China
Emulates realistic watercolor, acrylic, and dry media with physical paint diffusion, drying control, textured canvas, custom brushes, tilt and pressure support, color blending, masking tools, paint granulation, backruns, stencils, rulers, and high-res export.
SlovakiaEU
A powerful and unique digital art program, focusing on natural media painting, photo editing and illustrative styles.
United States
Free vector graphics editor offering real-time collaborative editing, browser and cross-platform desktop support, scalable design tools, AI, EPS, SVG, PNG, JPEG import/export, grouping and shape manipulation, and intuitive pen and freehand drawing options.
Singapore
openCanvas, popularly abbreviated as oC, is a popular Japanese image editing program.
Japan
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.
United States
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.
China
Kleki is a multi-platform web app for painting and editing. It features: 4 different brushes; pressure sensitivity for Wacom tablets; up to 8 layers; numerous filters with real-time preview; import to PSD, PNG, JPEG; export to JPEG and PNG; upload to imgur.com; local storage.
GermanyEU
