Loper · VFX, 3D & motion

Open .nk files on your Mac.

.nk .nknc .gizmo

Nuke comps and gizmos: nodes, knobs and values.

Loper is a free, minimal editor for macOS that opens Nuke scripts 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.

shot_042_comp_v07.nk opened in Loper: Nuke scripts with color-coded Nuke script
Show the file as text
Root { inputs 0 name /shows/night/042/comp/shot_042_comp_v07.nk fps 25 format "1920 1080 0 0 1920 1080 1 HD_1080"}Read { inputs 0 file /shows/night/042/plates/A001C003.####.exr first 1001 last 1113 name Read1}

How to open .nk files

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