Orion Download for Mac

Fast RAW editing for free

The RAW editor for Apple silicon Macs that keeps up with you: every slider move under 20 ms, your originals untouched. No subscription, no account.

Download for Mac Source code

macOS 14 or later · Apple silicon · Alpha · Other systems

Orion's window: a night photograph of cars outside a showroom, with the Light panel's white balance and exposure sliders beside it.
Exposure 0.00 EV

Everything your camera caught.

Raw files from most cameras. Drag to compare.

Fir trees and a cliff face disappearing into fog, as shot. The same frame developed in Orion, with the firs and the rock face lifted out of the shadow under the fog.

Your originals stay untouched.

Edits live in a small sidecar beside the photo. Nothing is uploaded.

DSC09787.ARW85.5 MB, never changed
DSC09787.xmp2 KB, your edits

Claude can edit with you.

An MCP server ships inside the app. Claude proposes an edit, Orion renders it, you approve it or you don't. Nothing is saved until you say so.

  1. 01Claude proposes"Lift the shadows on the subject, keep the sky."
  2. 02Orion renders itThe real engine, on your photo, in under 20 ms.
  3. 03You approveOr you don't. Nothing touches the sidecar until you do.
$ claude mcp add orion -- \
    /Applications/Orion.app/Contents/MacOS/orion-mcp
detect_subjectsync_editsget_statscurrent_photoAll tools

Features

Everything in the current build.

Tone and color

  • Exposure, contrast, highlights, shadows, whites, blacks
  • White balance, color grading, tone curves
  • Film looks from any .cube file
  • One-click auto-enhance

Detail and repair

  • Haze removal, clarity, shadow recovery
  • Noise reduction, sharpening, color mixer
  • Spot and blemish removal
  • Film grain, and a vignette you can dial in

Geometry

  • Crop, straighten, rotate
  • Distortion and vignetting for 1,558 lenses
  • Perspective and keystone correction

Masking

  • Gradient, radial, brush, brightness and color masks
  • Selecting a subject, a person or a sky
  • Masks combined (add, subtract, intersect) and feathered to real edges

Library

  • Browsing a folder of 300 frames without waiting on it
  • Saved versions of a photograph, to come back to later
  • Presets, and copying settings between photos

Platforms

  • macOS on Apple silicon
  • Windows and Linux: alpha builds from the same code, looking for testers with real GPUs

Claude

  • An MCP server inside the app: Claude proposes, Orion renders, you approve
  • Subject, person and sky mattes, stats and capture data exposed as tools

Export

  • Export at 8 or 16 bits, resized, sharpened for screen or print
  • Export with your location stripped by default

Not yet

  • Highlight reconstruction: the region fill runs and has a slider, but the detail transfer and the edge falloff are not built
  • Fujifilm X-Trans sensors
  • Intel Macs
  • Signed installers and in-app updates

Every filter is built from a published paper. Read the sources.

Wooden pilings of an old pier in calm water, developed in Orion in a cool, deep blue.

Try the alpha

Download for Mac

Free. No account. Source on GitHub.