loper

Loper · Colorists & finishing

Open .cube files on your Mac.

.cube

Resolve and Adobe 3D LUTs. Header keywords like LUT_3D_SIZE and DOMAIN_MIN stand apart from the RGB values.

Loper is a free, minimal editor for macOS that opens LUT (.cube) 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.

Download Loper – freeAll formats
LogC4_to_Rec709.cube opened in Loper: LUT (.cube) with color-coded LUT (cube, 3dl)
Show the file as text
# Created by ResolveTITLE "LogC4 to Rec709 – show LUT"LUT_3D_SIZE 33DOMAIN_MIN 0.0 0.0 0.0DOMAIN_MAX 1.0 1.0 1.0 0.000000 0.000000 0.0000000.031250 0.000000 0.0000000.062500 0.002441 0.000000

How to open .cube files

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

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