private-eye ☆
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Description:
Network monitor
Type: Cask  |  Latest Version: 1.1.0@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Networking
Tags: network monitoring traffic utility macos
Install: brew install --cask private-eye
About:
Private Eye is a lightweight network monitoring tool that displays active network connections and traffic on a per-application basis. It provides real-time visibility into which processes are communicating over the network, helping users identify unexpected connections. The tool offers a clean, native interface for tracking bandwidth usage and connection endpoints without heavy system overhead.
Key Features:
  • Real-time per-application network traffic monitoring
  • Connection endpoint and port visibility
  • Lightweight native macOS implementation
  • Clean, minimal user interface
Use Cases:
  • Debugging network issues in applications
  • Monitoring for suspicious or unexpected network activity
  • Tracking bandwidth usage by specific processes
Alternatives:
  • Little Snitch – More comprehensive firewall with rule-based blocking, but heavier and paid
  • lsof/netstat – Built-in CLI tools, less visual and harder to parse for per-app traffic
Version History
Detected Version Rev Change Commit
Aug 5, 2025 2:22pm 1.1.0 0 VERSION_BUMP d870e59b
Jul 6, 2024 12:07pm 1.1.0 0 VERSION_BUMP 1f4a2014
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