Support & Help Center

To install WhoUseMyPort on your Mac:

1. Direct Download: Download the DMG file from our website, open it, and drag the app to your Applications folder
2. Alternative: Use the direct download link at the top of our homepage

The app requires macOS 10.15 (Catalina) or later.

WhoUseMyPort needs administrator privileges for certain advanced features:

• Terminating processes that are using ports
• Accessing detailed process information
• Monitoring system-level network connections

Basic port scanning works without admin privileges. The app will only request elevated permissions when needed.

Your privacy is our top priority. WhoUseMyPort:

• Processes all data locally on your Mac
• Does not send any data to external servers
• Does not collect personal information
• Works completely offline

Read our Privacy Policy for complete details.

WhoUseMyPort provides several ways to filter and search for ports:

1. Use the search box to find specific port numbers
2. Filter by protocol (TCP/UDP) using the dropdown menu
3. Filter by port state (LISTEN, ESTABLISHED, etc.)
4. Sort by clicking on column headers

The app automatically scans all active ports when you click the Refresh button.

Yes, WhoUseMyPort allows you to safely terminate processes:

1. Right-click on any process in the port list
2. Select "Terminate Process" from the context menu
3. Confirm the action in the dialog that appears

Warning: Be careful when terminating processes, as this may affect system stability or cause data loss in running applications.

WhoUseMyPort supports both English and Chinese:

1. Click the language button (🌐) in the top toolbar
2. Select your preferred language from the dropdown
3. The interface will immediately switch to the selected language

Your language preference is automatically saved for future sessions.