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Compositor vs PhotoGIMP: catalog facts
Compositor	PhotoGIMP
Free Completely free and open source.	Free Free, with source published on GitHub.
macOS	Windows, Linux
Photoshop-like workflow for compositing and retouching Free with no subscription	Eases the move from Photoshop to GIMP Targets GIMP 3 and later
macOS only Younger and less complete than Photoshop or GIMP	Requires GIMP to be installed first Overwrites your existing GIMP configuration
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.