loper

Loper · Colorists & finishing

Open .ocio files on your Mac.

.ocio

OCIO color pipeline configs: roles, color spaces, displays and looks in a nested outline.

Loper is a free, minimal editor for macOS that opens OpenColorIO config instantly and colors every part of the file, so you find the value you need at a glance and can fix it right there. No IDE, no project to load, no gray wall of text.

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config.ocio opened in Loper: OpenColorIO config with color-coded YAML
Show the file as text
ocio_profile_version: 2.1roles:  scene_linear: ACEScg  color_timing: ACEScctdisplays:  sRGB - Display:    - !<View> {name: ACES 1.0 - SDR Video, view_transform: ACES 1.0 - SDR Video}colorspaces:  - !<ColorSpace>    name: ACEScg    family: ACES    encoding: scene-linear

How to open .ocio files

  1. Download Loper (free, Apple silicon, signed and notarized) and move it to Applications.
  2. Double-click your .ocio file, drag it onto the Loper window, or right-click it and choose Open With › Loper.
  3. Want every .ocio file to open in Loper? Choose Loper › Make Loper the Default Editor….

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