MacVitals

A lightweight macOS menu bar app for monitoring system vitals — CPU, Memory, Storage, Battery, Thermals, and Uptime.

Features

• CPU — Total, user, and system usage with per-core breakdown and top processes
• Memory — Usage breakdown (active, wired, compressed), memory pressure, and top consumers
• Storage — Disk usage with real-time read/write speeds
• Battery — Charge level, health, cycle count, and time remaining
• Thermals — CPU/GPU temperatures and fan speeds via SMC
• Uptime — System uptime at a glance

Screenshots

Requirements

• macOS 15.0+
• Xcode 16+

Installation

GitHub Releases

Download the latest .dmg from Releases.

Build from Source

git clone https://github.com/owieth/MacVitals.git
cd MacVitals
xcodebuild -project MacVitals.xcodeproj -scheme MacVitals -configuration Release build

Architecture

MacVitals runs as a menu bar–only app (no dock icon). Click the icon to open a popover with live system stats organized in expandable sections.

MacVitals/
├── Models/          # Data models (CPUInfo, MemoryInfo, etc.)
├── Services/        # System data collectors + orchestrator
├── ViewModels/      # @Observable view models
├── Views/           # SwiftUI views (popover, sections, settings)
└── Utilities/       # Preferences, formatters, constants

Data Collection

Metric	API
CPU	host_processor_info() delta sampling
Memory	host_statistics64() VM info
Storage	FileManager + IOKit disk I/O
Battery	IOKit IOPSCopyPowerSourcesInfo
Thermal	SMC via IOKit (AppleSMC)
Process	proc_pidinfo / proc_pid_rusage

Settings

• Refresh rate — 1s, 2s (default), or 5s
• Menu bar display — Icon only, icon + CPU%, or icon + temperature
• Temperature unit — °C or °F
• Launch at login — via SMAppService
• Visible sections — Show/hide individual sections

License

MIT

Acknowledgments

Inspired by Stats and Lazy Stats.