OSView

A native macOS system monitoring utility built with SwiftUI. Displays real-time metrics for CPU, memory, GPU, disk, and network.

Note: This app was mostly vibecoded. It was made for personal use and is being open-sourced in case someone finds it useful. Inspired by the classic IRIX gr_osview tool.

Requirements

• macOS 15.0 or later
• Xcode 16+ (for building from source)

Installation

Download

Download the latest release from the Releases page.

Note: The app is unsigned. After downloading, open Terminal and run:

xattr -cr ~/Downloads/OSView.app

Then double-click to open. This removes the quarantine flag that macOS adds to downloaded files.

Build from Source

git clone https://github.com/yourusername/OSView.git
cd OSView
xcodebuild -project OSView.xcodeproj \
  -scheme OSView \
  -configuration Release \
  -derivedDataPath build \
  clean build

The app will be at build/Build/Products/Release/OSView.app.

Why is the app unsigned?

Signing and notarizing macOS apps requires a paid Apple Developer Program membership ($99/year). Since this is an open-source project, the app is distributed unsigned.

This means:

• macOS Gatekeeper will show a warning on first launch
• You need to right-click → Open to bypass the warning (one time only)
• The app works normally after that

License

MIT