robbietilton/Compositor

The Photoshop alternative for Mac

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README & documentation

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Adobe Photoshop costs too much and tools like GIMP don’t feel familiar enough for me to stay in flow. That’s why I built Compositor. The goal was to create a full-featured image editor that is completely free and open source. I used to use Photoshop for compositing and post-processing, so Compositor is built around that workflow - with the tools needed to create a pixel-perfect final image. Because it’s open source, you can download the Xcode project and add, remove, or modify any feature to fit your workflow. Get Compositor from robbietilton.com/compositor, or download the latest release directly from GitHub Releases. Compositor is English only for now, and translation pull requests aren't being accepted. It's maintained by one person, every new string would need translating from then on, and translations in languages…

robbietilton/Compositor on GitHub A short preview, not the full document.

Read the full README ↗ · Preview checked 2026-10-28T19:22:04.073Z

Inside the original README — Document outline
  1. Compositor
  2. Installation
  3. Download
  4. Homebrew
  5. Features
  6. Layers
  7. Transform
  8. Selections
  9. Painting and retouching
  10. Adjustments and filters
  11. Canvas and files
  12. Works with AI agents

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Documentation belongs to its respective authors. Reported project/model license: MIT. A listing is not a grant of reuse or training rights. Confirm the document’s own terms at the source.

What this repository does

The Photoshop alternative for Mac

Repository facts

Owner
robbietilton
Primary language
Swift
Stars
17,150
Forks
1,680
Open issues + pull requests
64
License
MIT
Archived
No
Default branch
main
Created
2026-09-16T20:35:54.000Z
Last push
2026-10-15T01:43:33.000Z

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