Apps similar to openCanvas include Krita, which is free and open source. Other options are Adobe Photoshop, Paint.NET, MyPaint and Clip Studio Paint. There's no shortage of Digital Painting Tools like openCanvas, with more than 50 alternatives for Windows, Mac, iPad, iPhone and Linux.
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.
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An image and stencil editor for artists. Work with layers, remove backgrounds, use a gallery, pressure-sensitive drawing, customize colors/effects, and edit offline for full creative control.
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.
Slovakia
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Umoupen is a fully featured drawing and animation app for artists who want it all, sketching, frame-by-frame animation, storyboarding, comic/notebook features, endless raster and vector canvases, extensive import (most image types, MP4, SVG, FLA) and export (PNG, GIF, MP4)...
Mobile editor offers 30+ color adjustments, AI upscaling, smart selection, noise removal, object eraser, RAW and Apple ProRAW support, film-style presets, batch edits, real-time histograms, deep Photos and iCloud integration, plus LUT export and pro-level features.
United States
Flame Painter is a unique paint program that lets you create original artworks with flame brushes.
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Pastela is a drawing app designed around the motto: "Draw out your creativity for the world."
Japan
Hong Kong SAR China
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
Pixia is a freeware bitmap graphics editor program for Windows, created by Isao Maruoka. It was originally designed for the anime/manga community but has also been used in other branches of art.
Japan
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.
Sketches is a perfect mix of beauty, simplicity and power, a truly unique combination you won't find anywhere else.
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