How to open .PKG files on Mac
To open .PKG files on Mac, double-click the .pkg file to open it in the macOS Installer.
Step-by-step instructions
- Double-click the .pkg file to open it in the macOS Installer.
- If macOS warns about security or developer identity, confirm you trust the source before proceeding.
Common issues
The .PKG won’t open or install on Windows/Linux
Most .pkg files are macOS installer packages and aren’t executable installers on Windows or Linux.
- Open the .pkg on macOS using Installer (preferred for actual installation).
- If you only need to inspect contents, extract it using an XAR-capable tool because many macOS .pkg files are XAR archives.
macOS shows a warning or blocks the installer
macOS may warn about packages from unidentified developers or downloaded packages that require user confirmation.
- Verify you obtained the .pkg from the intended vendor or administrator before proceeding.
- If you are in a managed environment, confirm with IT whether the package is expected and approved.
The package seems corrupted or fails mid-install
An incomplete download or transfer can break the package structure and cause Installer to fail.
- Re-download or re-transfer the .pkg from the original source and try again.
- If possible, compare file size/checksums provided by the source to confirm integrity.
You expected an app but got a .PKG
On macOS, apps are often distributed as .pkg installers rather than a single .app bundle; the installer places files into system locations.
- Run the .pkg with macOS Installer to install the app properly.
- After installation, look for the app in Applications (or the location specified by the installer).
Security note
.pkg files are installer packages and can run install-time actions; only install packages from trusted vendors or administrators.