Cullibrate is a local-only desktop app for Apple-silicon Mac and x64 Windows. Grab the installer for your platform and follow the usual install steps — Cullibrate doesn't upload your RAWs and works offline once installed.

On macOS Apple Silicon
- Sign in at cullibrate.com and open Download.
- Click Download for Mac. The Apple Silicon .dmg file will save to your Downloads folder.
- Open the .dmg and drag Cullibrate into Applications.
- Launch Cullibrate from Applications. On first open, macOS may ask you to confirm — click Open.
On x64 Windows
- Sign in at cullibrate.com and open Download.
- Click Download for Windows. The x64 installer will save to your Downloads folder.
- Open the installer and follow the Windows setup prompts.
- Launch Cullibrate and complete browser sign-in when prompted.