Preset Atlas · runs entirely in your browser

Preset Atlas

Drop a folder of Lightroom presets (.xmp) or a .zip of them. Each preset is read setting by setting and run through an approximate model of Lightroom's develop pipeline, then grouped into recipe families with a card for each one. Your files never leave this page: nothing is uploaded.

Drop presets here .xmp files, a folder, or a .zip · or choose files ·

What the set actually is

Want written findings? These notes are generated by fixed rules. For the kind of lineage and naming commentary in the hand-written Atlases, save a brief (instructions plus all the data above) and attach or paste it into Claude or another AI. This page doesn't send it anywhere; it holds your presets' names and settings, so share it only where you're comfortable.

Lineage

Families by recipe

Families are grouped by recipe (curves, calibration and color grade), not by name. Averages are per family. Shadow floor is the output brightness of the darkest 10% of tones. Hue shifts are in Lab: for skin, + means toward yellow (golden); for foliage, + means toward cyan; for sky, − means toward cyan.

How the recipe changed

The key settings, line by line

Consolidation

Same settings, different names

These presets have identical settings apart from name, group and housekeeping fields, or differ only in the fields listed.

Consolidation

Close variants

With white balance and exposure set aside, each group differs by less than about 6 ΔE on its worst test patch: the same look with small tweaks.

Template

How to read a card

Zone map: Zones 0–X (L* 0–100). In each cell, the top is the original and the bottom is the preset's result. The bars show how many L* each zone moves: up means lifted (fade), down means pulled down.
Curves: Tone · RGB · Net: Tone is the net brightness of every slider and curve, with the point curve dashed. RGB shows the R/G/B curves with an outline in the tint they create (6×). Net combines every color tool except white balance.
Color by tone: What the grade does to neutral greys from black to white, white balance excluded, tint shown at 4×.
Subjects: Skin, foliage and sky test colors, split diagonally into before (top left) and after (bottom right).
Grain · Vignette: A 1:1 grain sample on Zone V grey, and a frame showing the vignette and how much the corners drop.
Footer: The preset's Lightroom group, its nearest look in the set, and the calibration and grade numbers.

Caveats

These numbers come from a model of Lightroom built from each preset's settings, not from Lightroom renders. Use them to compare presets with each other. Camera-matching and third-party profiles (Cobalt, Fuji film simulations and so on) can't be simulated; those cards are marked and show the recipe on top of Adobe Color. Lightroom doesn't document whether the master point curve runs before or after the R/G/B curves; this page assumes master first. Families, tiers (fade, contrast, brightness) and close variants are relative to the set you drop, so the same preset can land in a different tier in a different set.