There are many alternatives to GIMP for Linux if you are looking for a replacement. The best open source Linux alternative is Krita. If that doesn't suit you, our users have ranked more than 100 alternatives to GIMP and many of them are open source and available for Linux so hopefully you can find a suitable replacement. Other interesting open source Linux alternatives to GIMP are MyPaint, PixiEditor, PhotoGIMP and LazPaint.
Free, open-source painting software designed by artists for artists. Offers customizable UI, 9 brush engines, color management, tablet support, non-destructive editing, and privacy features. Portable and available on major platforms, supporting seamless texture creation.
MyPaint is a fast, distraction-free, and easy painting tool for digital artists. It supports graphics tablets made by Wacom, and many similar devices.
Create pixel-perfect sprites, raster paintings, and scalable vector graphics with a unified open-source editor featuring frame-by-frame animation, a node-based workflow, custom shaders, procedural art tools, anti-aliased brushes, and versatile export options.
Raster & vector graphic editor with many tools and filters, written in Lazarus. Portable, 32bit & 64bit versions, ORA format & 16384x16384 image support. In app 3D import & rendering.
miniPaint is free online image editor using HTML5. Edit, adjust your images, add effects online in your browser without installing anything. You can use the Electron based version of the editor if you like.
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.
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.
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.
Tux Paint is a free, award-winning drawing program for children ages 3 to 12 (for example, preschool and K-6). Tux Paint is used in schools around the world as a computer literacy drawing activity. It combines an easy-to-use interface, fun sound effects, and an encouraging...
Ansel is an open-source photo-editing software for digital artists, designed to help you achieve your own interpretation of raw digital photographs.
You can use it to view your photographs and improve them. Showfoto is the standalone image editor of the digiKam project.
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I disagree with most of the negative comments because you can actually do image manipulation/photo editing as well, at least the basic stuff like auto contrast, color balance, saturation, blur, sharpness, image size, canvas size and so on.