Alternatives to Fotor for all platforms with Open Source License

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 Chrome OS BSD ... PortableApps.com Haiku AmigaOS
Layer manipulation Customizable Support for Layers Photo effects ... Batch image manipulation Blur Filter Built-in Color picker Color correction Color to Alpha Extensible by Plugins/Extensions High-resolution images Image Masking Keyframe animation Retouch photos Portable Open PSD files Scalable Scripting support Symmetry brush Add a feature

3431 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 Animations Support for Wacom Tablets Customizable ... Frame by frame animation Lightweight Smooth lines Texture painting Auto aligment rulers Auto Correcting Document templates Fullscreen support Hability to distort or warp the selection Support for Layers Multi-choice brushes No Kernel-Mode Components Page labeling Pop-up Palette Portable Open PSD files Rewind the changes Support for Hotkeys SVG Editors Symmetry brush Tablet Pressure Sensitivity Texture for brushes Timeline-based Optimized for Touch screen Add a feature

656 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...
- Discontinued Last stable release was in 2015. See https://pinta-project.com/pintaproject/pinta/releases/1-6
Free Open Source Mac Windows Linux BSD Mono
Support for Layers Lightweight Add a feature

214 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 Add a feature

151 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
Seashore

Seashore is an open source image editor for Mac OS. It features gradients, textures and anti-aliasing for both text and brush strokes. It supports multiple layers and...

Free Open Source Mac
SVG Editors Add a feature

67 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
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

11 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...
- Discontinued The project seems to be no longer developed. Last version, 2.0, released in August 2013, can be still downloaded from GitHub.
Free Open Source Mac Windows Linux GIMP
Categories Cutting Add a feature

22 Like
PhoXo

PhoXo is small and free image editing application. It's tiny, fast, easy to use, can be treated as a mini PhotoShop. Its features include layers, undo, over 50...
- Discontinued Last release was on 2014-11-07.
Free Open Source Windows
No features added Add a feature

12 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
CrackArt

CrackArt is a free open source 3D paint and texturing application that includes Texture Painting, Texture Baking, Procedural Materials and Textures, and much more. ...
- Discontinued The domain is long dead and the SourceForge project has not been updated since 2013.
Free Open Source Windows
Texture painting Texturing Add a feature

9 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
CinePaint

CinePaint is a deep paint application that edits EXR, DPX, 16-bit TIFF, JPEG, PNG and many other types of image files. CinePaint is available as a native application for...

Free Open Source Mac Linux
No features added Add a feature

14 Like