MacPerf

A native macOS performance monitor built with SwiftUI.

Real-time graphs and metrics for CPU, memory, disk, network, GPU, and thermals — in a main window dashboard and a menu bar dropdown.

Screenshots

Real-time overview dashboard (Dark theme)

Live, continuously-updating metrics

Per-metric detail views — CPU, GPU, Disk

Light theme and settings

At-a-glance metrics in the menu bar

Features

• CPU — Per-core utilization, system / user / idle breakdown
• Memory — Active, wired, compressed, cached breakdown with accurate pressure gauge
• Disk — Read/write throughput
• Network — Upload / download bandwidth
• GPU — Utilization and temperature
• Thermal — CPU/GPU temperatures via HID sensors (Apple Silicon) and SMC (Intel)
• Processes — Top processes by CPU / memory usage with tree view
• Battery — Charge level, charging state, time-to-full / time-to-empty (when present)
• Storage — Per-volume capacity and I/O
• Menu bar dropdown — Quick-glance metrics that float over fullscreen apps
• Themes — Dark, Light, Neon
• Export — CSV / JSON for the current session's metric history

Requirements

• macOS 14.0+
• Apple Silicon or Intel

Install

Download the latest signed and notarized .dmg from the Releases page, open it, and drag MacPerf into your Applications folder.

Build from source

swift build
swift run MacPerf

Requires Swift 5.9+.

Build the disk image

./build-dmg.sh

Produces a signed, notarized, and stapled dist/MacPerf-<version>.dmg. Signing uses your Developer ID Application identity (auto-detected from the keychain); notarization uses a credential profile stored in the keychain via a one-time setup:

xcrun notarytool store-credentials macperf-notary

For an unsigned local build, run MACPERF_UNSIGNED=1 ./build-dmg.sh.

License

MIT © Nathaniel Graham