GIMP GIMP is a free program for such photo retouching, image composition and image authoring. Essentially it's the closest thing to Photoshop you can get for free. Free Open Source Mac Windows Linux BSD PortableApps.com ... Haiku AmigaOS Layer manipulation Customizable Support for Layers Batch image manipulation ... Built-in Color picker Color to Alpha Extensible by Plugins/Extensions Keyframe animation Photo effects Retouch photos Portable Open PSD files Scripting support Symmetry brush Add a feature 3341 Like
Krita Krita is a complete creative sketching and painting application with advanced, commercial quality features. It's free, open-source and available across all major... Free Open Source Mac Windows Linux PortableApps.com Keyframe animation Support for Wacom Tablets Lightweight Smooth lines ... Texture painting Animations Auto aligment rulers Auto Correcting Customizable Document templates Frame by frame animation Fullscreen support Hability to distort or warp the selection Support for Layers Page labeling Portable Open PSD files Rewind the changes SVG Support Symmetry brush Tablet Pressure Sensitivity Texture for brushes Timeline-based Optimized for Touch screen Add a feature 592 Like
Pinta Pinta is a free, open source drawing/editing program modeled after Paint.NET . Its goal is to provide users with a simple yet powerful... Free Open Source Mac Windows Linux BSD Mono Support for Layers Lightweight Add a feature 203 Like
RawTherapee RawTherapee is a free RAW converter and digital photo processing software. All changes can be applied and batch processed at a convenient time. Free Open Source Mac Windows Linux BSD PortableApps.com Batch conversion Batch processing Curve Manipulation Multiple languages ... Non destructive editing Portable Raw converter Raw Photo processing Watermarking Add a feature 148 Like
Polarr From advanced image filters to professional local adjustments, Polarr Photo Editor is the most versatile and powerful online photo editor in the web. Freemium $ $ $ Mac Windows Linux Web Android ... iPhone Blackberry Windows S Android Tablet iPad Chrome Watermark images Photographic filters Retouch photos Raw Photo processing Add a feature 80 Like
photivo Photivo is a multi platform photo processor for RAW and bitmap images with 16 bit precision. Photivo tries to give the user as much control as possible to express his... Free Open Source Mac Windows Linux GIMP Raw Photo processing Add a feature 36 Like
Luminance HDR Luminance HDR is a graphical user interface (based on the Qt5 toolkit) that provides a complete workflow for HDR imaging. Free Open Source Mac Windows Linux No features added Add a feature 34 Like
ImageJ ImageJ is a public domain, Java-based image processing program developed at the National Institutes of Health. ImageJ was designed with an open architecture that... Free Open Source Mac Windows Linux Cell counting Scientific data analysis Add a feature 30 Like
Gimp Paint Studio 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... Free Open Source Mac Windows Linux GIMP Categories Cutting Add a feature 20 Like Discontinued The project seems to be no longer developed. Last version, 2.0, released in August 2013, can be still downloaded from GitHub.
Pixelitor Pixelitor is a cross-platform raster graphics editor written in Java. It supports image filters, drawing, layers, multiple undo, etc. Currently its main strength lies in... Free Open Source Mac Windows Linux Photo effects Photographic filters Retouch photos Add a feature 9 Like
showFoto ShowFoto is the standalone image editor of the digiKam project. It runs without digiKam images database support, but provides all Image Editor functions. Free Open Source Mac Windows Linux KDE No features added Add a feature 11 Like
AndreaMosaic With AndreaMosaic you can create your own photographic mosaics made with your own pictures. A photo mosaic is an image composed of many tiled photos. Free Mac Windows Linux PortableApps.com Photo effects Portable Add a feature 9 Like
PencilSheep Layers, filters, layer styles, adjustment layers, masks, selections, brushes, undo/redo, graphics tablet support, raw file import, etc. Interactive filter layers, full... Free Windows Linux Web Support for Layers Add a feature 7 Like
Gnome Paint gnome-paint is a simple, easy to use paint program for GNOME. It is inspired by MS-Paint. Free Open Source Linux No features added Add a feature 8 Like
MARI MARI is a creative texture-painting tool that can handle extreme projects. MARI was developed at Weta Digital to handle the massively complex, highly detailed look... Commercial Mac Windows Linux Texturing Add a feature 12 Like
