Cull

A fast, minimal photo culling app for photographers. Swipe through your photos — keep the good ones, discard the rest.

Built with Electron. Supports JPEG, PNG, and DNG (raw) files. Works fully offline.

How It Works

1. Open a folder containing your photos
2. Each photo is displayed full-screen
3. Swipe right (or press →) to keep a photo
4. Swipe left (or press ←) to discard — the file moves to a culled/ subfolder
5. Undo mistakes with Ctrl+Z / Cmd+Z
6. When you're done, see a summary of your session

Discarded photos are never deleted — they're moved to a culled/ subfolder inside the original directory. You can always get them back.

Features

• RAW/DNG support — raw files are converted on-the-fly via Sharp
• Image preloading — the next photo loads in the background for instant transitions
• EXIF metadata sidebar — toggle with I to see camera, lens, exposure, and more
• 14 metadata fields — Camera, Lens, Focal Length, Aperture, Shutter Speed, ISO, White Balance, Flash, Metering Mode, Color Space, Dimensions, File Size, and Date
• Undo — undo the last discard with Ctrl+Z / Cmd+Z
• Progress tracking — see where you are in the set with a counter and progress bar
• Session resume — re-opening a folder picks up where you left off, skipping already-culled photos
• Offline — all fonts and assets bundled locally, no internet required
• Cross-platform — macOS, Windows, and Linux

Keyboard Shortcuts

Action	Key
Discard	←
Keep	→
Undo discard	Ctrl/Cmd+Z
Toggle info	I
Fit to screen	F
Show shortcuts	?
Open folder	Ctrl/Cmd+O
Quit	Esc

Installation

Download

Grab the latest release for your platform from the Releases page.

• macOS: .dmg
• Windows: .exe (NSIS installer)
• Linux: .AppImage

Build from Source

git clone https://github.com/RamzyBakir/cull.git
cd cull
npm install
npm start

Create a Distributable

npm run dist

Output will be in the dist/ directory.

Tech Stack

• Electron — desktop app framework
• Sharp — image processing & DNG conversion
• Exifr — EXIF metadata parsing

Project Structure

src/
├── main.js          # Electron main process
├── preload.js       # Context bridge (IPC)
├── renderer.js      # UI logic
├── index.html       # App shell
├── styles.css       # Styling
└── fonts/           # Bundled fonts (offline)
build/               # App icons per platform
docs/                # Design docs

Contributing

Issues and pull requests are welcome at github.com/RamzyBakir/cull.

License

MIT © Ramzy Bakir