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About Port Radar

Port Radar is a native macOS utility that scans and displays every listening port on a user’s system. It groups processes by project—such as Vite, Next.js, Python, or Docker—and shows details like port number, process ID, and runtime. Users can query Apple Intelligence directly within the app to learn what a process is, why it is running, and whether it is safe to stop, all processed on-device without cloud involvement. The tool also supports sharing local apps via Cloudflare tunnels with a single click, generating public URLs for previews or collaboration without requiring CLI commands or additional accounts. Port Radar provides a menu-bar interface for quick access and includes options to stop processes cleanly, either gracefully or forcefully, with confirmation prompts to avoid accidental interruptions. It is designed for developers and users who need visibility into background services, debugging tools, or development servers running on their Mac.

Key features

  • Scans and lists all listening ports
  • Groups processes by project (Vite, Next.js, Python, Docker)
  • Apple Intelligence-powered process explanations
  • One-click Cloudflare tunnel sharing
  • Graceful or forceful process termination
  • Menu-bar interface for quick access
  • Open source under Apache 2.0
  • Supports Apple Silicon and Intel Macs

Use cases

  • Debugging local development servers and ports
  • Identifying and stopping orphaned or unnecessary processes
  • Sharing live previews of local apps with teammates

Pros

  • Displays all listening ports grouped by project
  • Integrates Apple Intelligence for on-device process explanations
  • Supports one-click sharing of local apps via Cloudflare tunnels
  • Provides clean process termination with confirmation
  • Open source under Apache 2.0 license

Cons

  • Requires macOS 14 or later
  • Apple Intelligence feature limited to macOS 26+
  • Initial launch may require manual notarization approval in System Settings

Frequently asked questions about Port Radar

What is Port Radar and what does it do?

Port Radar is a native macOS utility that scans and displays every listening port on a user’s system. It groups processes by project, such as Vite, Next.js, Python, or Docker, and shows details like port number, process ID, and runtime.

Who is Port Radar designed for?

Port Radar is designed for developers and users who need visibility into background services, debugging tools, or development servers running on their Mac.

How does Port Radar use Apple Intelligence?

Port Radar allows users to query Apple Intelligence directly within the app to learn what a process is, why it is running, and whether it is safe to stop. This processing is done on-device without cloud involvement.

Can Port Radar share local apps via public URLs?

Yes, Port Radar supports sharing local apps via Cloudflare tunnels with a single click, generating public URLs for previews or collaboration without requiring CLI commands or additional accounts.

Does Port Radar require an internet connection to function?

No, Port Radar operates entirely on-device and does not require an internet connection for its core functionality, including Apple Intelligence queries.

How do I get started with Port Radar?

Download Port Radar for macOS, open the app, and grant necessary permissions if prompted. The tool will scan and display listening ports in the menu bar. For first-time users, macOS may block the app initially; navigate to System Settings → Privacy & Security to allow it.

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