Compositor
A free Mac image editor built around layers, masks and compositing.
Adobe Photoshop serves people working on layered image editing, retouching and compositing. These independent projects explore parts of that workflow with documented AI assistance. They are candidates to evaluate, not guaranteed drop-in replacements.
Reviewed 2026-10-29. These facts describe the original tool; evaluate each alternative against your specific requirements.
A free Mac image editor built around layers, masks and compositing.
Layered image editing with PSD files, masks and adjustment layers.
A free desktop image editor for layered PSD editing and retouching.
Capability statements come from project documentation. We have not functionally tested these third-party apps.
| Project | Documented scope | Cost / license | Platform | Self-hosting | AI provenance |
|---|---|---|---|---|---|
| Compositorreleased · Repository | free MIT | macos | No | AI contribution verified | |
| PhotoCraftalpha · Repository | free MIT OR Apache-2.0 | macos, windows, linux, web | Documented | AI contribution verified | |
| Photon Studioreleased · Project docs | free Proprietary; see maker terms | macos, windows, linux | No | Maker claim |
Switchable workflow: Edit and composite layered raster images on an Apple-silicon Mac, using layers, masks, adjustments and PNG/JPEG output. Source
macOS 26+ on Apple silicon. PSD/PSB import is limited to 8-bit RGB; some text and vector content becomes pixels. Not a verified drop-in replacement. Project source
Compare Adobe Photoshop vs CompositorSwitchable workflow: Replace a limited part of the incumbent workflow: casual layered image editing, compositing and image export. Source
Maker explicitly says not a daily professional Photoshop replacement. Missing tools, typography depth, plug-ins and AI/generative features remain. Check representative PSD layers, fonts and exported output; menu wiring does not establish behavior. Capabilities are source-documented, not independently app-tested. Project source
Compare Adobe Photoshop vs PhotoCraftSwitchable workflow: Replace Photoshop for local layered image edits and retouching, opening PSD files and saving an editable result or finished export. Source
No public source code or independent feature-parity verification is established. Test PSD/PSB round trips with representative layers, fonts, effects and exports; complex documents can differ. The original maker describes a buggy first version followed by iteration. Current capabilities are maker-documented, not independently runtime-tested. Project source
Compare Adobe Photoshop vs Photon StudioUse the step-by-step switching checklist
Match your actual workflow against the documented scope and limitations above. Preserving PSD layers, masks, text and color settings matters more than a familiar toolbar. Start with a copy of a real document and check the exported result. None of these listings is a promise of feature parity.
Each app links to attributable evidence of AI-assisted development. A verified contribution badge means a public commit credits an AI coauthor; a maker claim means the owner states AI was used. Neither establishes that every line was AI-generated or reviewed.
Compositor, PhotoCraft, Photon Studio are documented as free to use. Check the license linked for each project. Running infrastructure can still incur costs. Open source alone is not evidence of AI authorship.
For Adobe Photoshop, focus on layers and masks, psd import, export formats. Keep originals, try disposable copies and inspect round-trip exports. Missing comparison facts are unknown.