How-toGraycard blog

How to use Graycard, from card to shared JPEGs.

Open a card or folder, let Auto-cull set aside the misses, check the color, and export JPEGs ready to share. A first shoot in Graycard, step by step.

By SideSwipe Labs5 min read

Graycard's export sheet set to For sharing, 2048 px, sRGB, with the location removed, beside three exported JPEGs and the Share menu offering AirDrop, Messages, Mail, and Photos
From the Mac App Store listing · Illustrative photos

In short

Five steps, most of them one key.

  1. Open a card or folder with ⌘O.
  2. Run Auto-cull with ⇧⌘K, and review what it sets aside.
  3. Mark your favorites with P, and compare a burst with C.
  4. Check the color, and give a run one look with ⇧⌘C.
  5. Export with ⇧⌘E, choose For sharing, then press Share.

Graycard reads your photos where they are, and it never changes, moves, or deletes an original. Your first 80 photos are free to export.

01Open a card or folder

Press ⌘O and choose the card, drive, or folder, or drop it on Graycard’s window. Folders inside it open too. Nothing is copied into a library: Graycard keeps a bookmark to the folder and reads the files where they are. A RAW and a JPEG or HEIF with the same name are one photo, finished from the RAW.

If the photos are on a card or a drive, keep it plugged in while you work. Unplugged, the shoot shows as offline in the sidebar. Plug it back in, choose Reconnect, and pick the same folder, and your marks are still there.

Each shoot can have its own window: press ⌘N, or ⌘-click a shoot in the sidebar.

02Let Auto-cull set aside the misses

Press ⇧⌘K, choose how strict to be (Gentle, Balanced, or Strict), and press Start. Auto-cull reads each photo’s preview on your Mac, looking for blur, closed eyes, bad exposure, and the extra frames of a burst, and the counts update as it goes.

Press Review to see every photo it would set aside, with its reason on it. Keep (K) leaves a photo you still want unmarked. Then mark the rest as rejected. Nothing is deleted, and ⌘Z undoes it.

A contact sheet after Auto-cull, with three of nine frames set aside and marked out of focus, too dark, and blown highlights
Auto-cull sets three of nine frames aside, each with its reason. From the Mac App Store listing; illustrative photos.

Every check can be tuned or turned off on its own: how Auto-cull works goes through them.

03Mark the keepers

Marks work from the keyboard, in the grid or with a photo open, and Graycard moves to the next photo after each one.

Key Mark
0–5 Stars
P Pick
X Reject
U Unflag
E Exclude from export

All, Picks, Unmarked, and Rejected sit on the bar above the grid, so you can look at one kind at a time.

For a burst, select its frames and press C. Survey puts up to nine side by side: the arrows choose, Return opens the one in focus, and Esc goes back.

04Check the color

Graycard Auto finishes every photo on its own: it balances faces, tone, and color, and the result stays natural. To change a photo, double-click it, or press ⌘2, to open it in Photo. It shows split, as shot on the left and finished on the right, and holding Space shows it as shot.

  • Pick a look and its intensity in the inspector on the right.
  • Press Z to check focus at 100%, and J to see clipped highlights and shadows.
  • To give a run of photos one look, select them with the one you finished, and press ⇧⌘C.

Under mixed light, such as a day that moves from shade to window light, Auto sets the white balance again on every photo, and a run can drift. Set the temperature on one photo from that light, select the run, and in the export sheet choose Lock white balance, then Auto. Every photo uses that temperature, and Auto still sets the tone.

Six photos from one run, first each with its own Auto and a white balance that drifts, then with one white balance locked across them
Per-image Auto, then one white balance locked across the run. From the Mac App Store listing; illustrative photos.

05Export and share

Press ⇧⌘E and choose For sharing: JPEGs 2048 px on the long edge, tagged sRGB, with GPS and location fields removed, and the shot date and camera kept. Full size keeps every pixel and the location, and Print does the same and offers a 16-bit TIFF. Choose a folder, and export.

Rejects are skipped while Skip rejected is on, and Picks only exports just your picks. Graycard finishes each photo and writes it before moving to the next, so a cancelled run keeps everything already written.

When the export finishes, Share in its summary sends the JPEGs to AirDrop, Messages, Mail, or Photos. Next time, File › Export Again (⌥⇧⌘E) sends the selection to the same folder with your saved settings, without the sheet.

Your first 80 photos are free to export, and exporting them again stays free. For a larger export, Graycard Pro removes the limit.

06The keys, in one place

Action Keys
Open a folder, new window ⌘O ⌘N
Auto-cull ⇧⌘K
Stars, pick, reject, unflag 0–5 P X U
Exclude from export E
Survey C
Open a photo, back to the grid ↩ Esc
As shot while held, 100%, clipping, crop Space Z J R
Copy look, reset look ⇧⌘C ⇧⌘R
Export, export again ⇧⌘E ⌥⇧⌘E
Grid, Photo, Exported ⌘1 ⌘2 ⌘3
Job History, Help, Settings ⌥⌘J ⌘? ⌘,

The support page has the common fixes, and Help (⌘?) in the app has every menu’s keys.

Mac App StoreFree download

Graycard for Mac.

Open a folder of RAW or JPEG, set aside the misses, finish the color, and export JPEGs ready to share. Nothing is uploaded.

Price
Free, first 80 photos
Requires
macOS 26 or later
Runs on
Apple silicon or Intel
Account
None

After you download

  1. 01Get it, free
  2. 02Open a folder⌘O
  3. 03Auto-cull⇧⌘K
  4. 04Export photos⇧⌘E

Pro removes the 80-photo limit when a shoot needs it: once, yearly, or monthly. Family Sharing on every plan.