Compositor

Compositor is a free and open-source image editing application designed specifically for macOS, tailored for professional digital compositing and post-processing workflows. Built as an alternative to expensive proprietary software, it features a comprehensive suite of raster tools including layers, folders, layer masks, clipping masks, blend modes, adjustment layers, filters, and selection tools. Additionally, it provides advanced retouching utilities such as spot healing, clone stamp, liquify, and background removal, making it a capable tool for pixel-level image manipulation.