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Design · Desktop app

Compositor

Lightweight, open-source image compositing editor for macOS.

From the Xiry library · Updated 10 October 2026

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Compositor is a lightweight, open-source macOS app built as a focused alternative to Photoshop for compositing workflows. It provides essential photo manipulation tools—including layers, blend modes, masks, and adjustment tools—in a tiny footprint without subscriptions or bloat.

What it's for

  • Composite 3D renders or graphics onto live-action photography
  • Clean up and retouch images using clone stamp and spot healing
  • Mask and blend multiple photo layers with precise brush controls
  • Study or modify native macOS image editor code in Xcode

Features

  • Layer management with folders, clipping masks, and layer masks
  • Blend modes and opacity adjustments
  • Brushes with customizable size, hardness, and opacity
  • Clone stamp and spot healing tools
  • Adjustment layers, selection tools, and background removal
  • Filters including Gaussian blur, motion blur, grain, and lens correction
  • Liquify and smear tools
  • Small binary size and native Mac performance

Pricing

Open source. Free and open source

Details

Type
Desktop app
Category
Design
Topic
Photo Editing
Open source
Yes
Platforms
macOS
For
Mac users, digital artists, and designers looking for a lightweight, free compositing tool.
Alternative to
Adobe Photoshop, GIMP, Pixelmator Pro, Affinity Photo
Tags
photo editor, compositing, macos, open source, design, photoshop alternative

Why it was saved

  • @robbietilton, 18 September 2026: Adobe-substitute image editor for compositing, worth trying or studying the source.

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Updated