Today I'm releasing Open Sesame, a lightweight macOS menu bar application for monitoring network port activity on your machine.
The Problem
As developers, we often run multiple services locally - databases, API servers, development tools - each binding to different ports. Keeping track of what's running and identifying rogue processes can be tedious, usually requiring terminal commands like lsof or netstat.
The Solution
Open Sesame provides a clean, native interface that lives in your menu bar. With a single click, you can:
- View all open network ports and their associated processes
- Identify which applications are listening on specific ports
- Quickly spot unexpected network activity
- Monitor your system's network footprint in real-time
Built with Swift
The app is built entirely in Swift using AppKit, keeping it lightweight and performant. It integrates seamlessly with macOS and follows Apple's Human Interface Guidelines for a native experience.
Open Source
Open Sesame is completely free and open source. You can download the latest release or browse the source code on GitHub:
github.com/br3akzero/open-sesame/releases
Contributions and feedback are always welcome.
Break Zero