5,259 frames
A week in California, culled in one evening.
Scroll to cull
Half Dome at sunset from Glacier Point, the favorite of the shoot
2026_05_14_2365.CR3 · Glacier Point · 19:44 · 1/50 s · ƒ/10 · 89 mm · favorite

Five thousand frames.
One evening. Five keys.

CULL is photo culling for Windows and Mac, the step before Lightroom. Open the folder, judge each frame with one key, and the verdicts are already there when you import.

Download for Windows and MacFree up to 250 frames a sessionCULL runs on Windows and Mac. Open cull.photography on your computer.

Enter keeps a frame. Backspace rejects it. F marks a favorite. The arrows move. That is the whole cull.

EnterKeepBackspaceRejectFFavorite←→MoveSpaceHold for 100 %
The CULL window in Loupe: the Golden Gate from the Marin Headlands, just marked favorite; the rail with the camera's data; the strip with the set's verdicts.
Loupe · Golden Gate · 16 May 2026 · 13:32Frame 3,988 of 5,259 · 371 keeps so far

Frames of one scene are grouped before you reach them. Forty-eight frames of one tree in three sets, and the one to keep is obvious.

The CULL window in Grid: the Lone Cypress in similar sets of twelve, most rejected, four kept, one favorite.
Grid · the Lone Cypress · 17 May 2026 · 13:20Frame 4,539 of 5,259 · 448 keeps so far

Hold Space. The frame is at 100 %, at the point the camera focused. Let go and you are back.

The CULL window in Loupe: elephant seals on the beach at Piedras Blancas, marked keep. The same frame with Space held: one seal's face at 100 percent, whiskers and closed eyes filling the stage.
Loupe · Piedras Blancas · 17 May 2026 · 17:12 · at restFrame 5,195 of 5,259 · 503 keeps so far

The verdict is a sidecar beside the file. Lightroom reads it on import. The image data is never rewritten.

Tunnel View: El Capitan, Half Dome and Bridalveil Fall, a favorite
2026_05_14_1150.CR343.2 MB · unchanged
2026_05_14_1150.xmp

Nine RAW formats, straight from the card. Each frame opens from the preview the camera already wrote, so a five-thousand-frame folder is on screen in seconds.

CR3CanonCR2CanonARWSonyNEFNikonRAFFujifilmORFOlympusRW2PanasonicRWLLeicaDNGAdobe

Questions. The short answers.

What is culling?
The first pass through a shoot: every frame gets a verdict, keep or reject, before anything is edited. How to cull photos before Lightroom.
Does CULL change the RAW files?
No. A verdict is an XMP sidecar beside the file, or a few bytes added inside a DNG. The image data is never rewritten.
Does it work with Lightroom?
Yes. A keep is Lightroom's pick flag, a reject its reject flag, a favorite a pick with a purple label. Import with Add and they are there. Culling in Lightroom vs CULL.
Which cameras?
Canon CR3 and CR2, Sony ARW, Nikon NEF, Fujifilm RAF, Olympus ORF, Panasonic RW2, Leica RWL and DNG. What each one gives.
Is it free?
Free culls up to 250 frames in one session, with every feature. CULL Pro culls shoots of any size: $7.99 a month, $49.99 a year or $129.99 once.
Windows or Mac?
Both, with the same keys. The app updates itself.
CULL Pro

Cull shoots of any size. Every feature of Free with no limit on the shoot, and one key for two computers.

$7.99a month$49.99a year$129.99once, yours for good

Windows and Mac · a full refund within 14 days · prices in US dollars