How to preview a large LUT library in Photoshop
Photoshop previews LUTs one at a time through the Color Lookup adjustment layer’s dropdown, which lists them by filename with no thumbnails. To review a large library, set up one consistent test frame, step through candidates on it, and record the ones worth keeping. There is no built-in visual grid.
The constraint, stated honestly
Photoshop has no LUT browser. The Color Lookup adjustment layer offers a dropdown of presets plus a file dialog, and a file dialog shows you names, not looks. If your LUTs are called things like FLM_K400_v2.cube, the name tells you nothing about the image it produces.
That is the whole problem. Everything below is about working around it methodically instead of clicking hopefully.
Set up one test frame and keep it
Judging LUTs on whatever image you happen to have open produces inconsistent decisions. Pick one frame, save it somewhere permanent, and evaluate everything on it.
A useful test frame contains, in a single shot:
- A face, or at least believable skin tone. Skin is where bad grades reveal themselves first.
- A neutral grey or white object, so you can see colour casts.
- A bright highlight with detail in it, to expose clipping and harsh rolloff.
- A deep shadow, to show crushing and colour shifts in the blacks.
- One strongly saturated colour, to catch LUTs that oversaturate.
Shoot it yourself if you can. A frame from your own camera, in your own typical lighting, tells you more about how a LUT will behave in your actual work than any stock image will.
Step through candidates
- Open your test frame and add one Color Lookup adjustment layer.
- Load a LUT into it. Judge it at 100% first, then at around 30%, since that is closer to how you will really use it.
- Toggle the layer’s eye icon to compare against the original. Do this every time — your eye adapts within seconds and stops seeing the change.
- Keep a shortlist. A text file with filenames is enough; the point is not to rely on memory.
- Reload the same adjustment layer with the next candidate rather than adding new layers.
Why this still fails at scale
The method is sound and it does not scale. At roughly five seconds per LUT, a thousand-file library is well over an hour of uninterrupted clicking, and attention fades long before that. Most people review the first forty, find three they like, and never open the rest again.
That is why large LUT collections tend to sit unused. The files are not the problem. The reviewing loop is.
What a visual browser changes
LUTweave was built around this specific bottleneck. It renders previews of your library on your own image, so you are choosing between pictures instead of filenames, and it keeps favourites and search so a shortlist survives between sessions.
The Free version includes the full browsing and preview workflow with two slots, which is the part that matters for reviewing a library.