GIMP delivers powerful functionalities for photo retouching, image composition, and format conversion. As a versatile tool, it serves as both a simple paint program and a high-end retouching suite, and offers batch processing for mass image tasks in an accessible open-source platform.

Comprehensive raster graphics editor offering advanced photo and image editing features. Supports multiple layers, masks, alpha compositing, various color models, and has limited vector graphics, 3D, and video capabilities. Extensible via plug-ins.

Free Windows image editor with support for layers, plugins, and special effects. Offers intuitive interface, works offline, ad-free, and portable, consuming fewer resources.

Real-time image editing software supporting extensive colour spaces, unlimited layers, non-destructive edits, and a streamlined workspace for complex tasks on Windows, Mac, and iPad.

Explore this platform for free, web-based photo editing; it provides tools like overlays, double exposure, and color splash for detailed modifications plus Pro features like Influence Masks and advanced blending.

Image editing software for macOS and iOS, offering nondestructive, GPU-powered editing with machine learning features, RAW support, custom brushes, and seamless macOS integration for touch-ups, painting, and creative compositions.

Adobe's mobile photo-editing app lets you edit, share, and upload photos across devices. With features like free 2 GB storage, original size backup, and extra tools for advanced editing, it enhances your images for social media without reducing file quality.

Corel's tool provides comprehensive photo editing and design features including enhanced layers, precise tools, RAW editing, and organization capabilities such as keyword tags, auto sorting, and facial recognition, making it ideal for both novices and professionals in various projects.

XGimp is a version of gimp that works on a mobile. It can be used as a paint program, image editor or a photo retouching program.

AliveColors is comprehensive graphics and photo editing software for Windows and Mac. It comes in Free, Home, and Pro versions, with differing levels of functionality. Boost your creativity with AliveColors!.