RawCull Documentation

System Requirements

  • macOS Tahoe and later
  • Apple Silicon (M-series) only

Welcome to RawCull

RawCull is a robust, native macOS application developed using Swift and SwiftUI for macOS Tahoe. Tailored specifically for photographers, it simplifies the photo culling process, enabling users to swiftly identify and retain only their most exceptional photographs. The initial version exclusively supports culling Sony A1 Mk I and Mk II RAW files.

Security & Privacy: RawCull is digitally signed and notarized by Apple to protect against tampering. It runs as a sandboxed application, ensuring your data and system remain secure.

Key Features

RawCull lacks any editing capabilities, solely providing the ability to view and select images for copying.

  • High Performance: Developed natively with Swift and SwiftUI, optimized for Apple Silicon-based Macs, utilizing only Apple’s official Swift and SwiftUI frameworks, eliminating the need for third-party libraries
  • Small application: The DMG file is about 3 MB in size
  • User-Friendly Interface: Intuitive controls designed for efficient culling workflows
  • Privacy-First: All data remains on your Mac, eliminating cloud synchronization and data collection
  • Security: Digitally signed and notarized by Apple, it is also a sandboxed application, providing enhanced security
  • Free and Open Source: Available under the MIT license
  • Non-Destructive: It only reads ARW files, creating and storing thumbnails separately in the sandbox

The actual copy of ARW files from source to destination is non-destructive. It utilizes the default /usr/bin/rsync as part of macOS. Prior to the actual copy of files, a --dry-run parameter can be employed to simulate the files that will be copied to the destination.

Installation

RawCull is available for download on the Apple App Store or from the GitHub Repository. The GitHub release may appear 1-2 days before the App Store version due to the different release processes employed by each platform.

For security, please verify the SHA-256 hash after downloading if installed from GitHub. Current updates and release notes are available in the changelog.


Last modified March 14, 2026: update (6f708a2)