Mac Performance Monitor

Zesty0wl · A native Apple-silicon Mac performance monitor with menu-bar readings, recorded history, process comparison, alerts and Explorer charts.

CaskUtilitiesAuto-updatesApple silicon

Homepage

From homebrew/cask

30-day installs: 254; #538 in App
1-year installs: 339; Last 365 days
Latest version: 2.4.0.289; 6 days ago · Oct 17
Download size: 19MB; arm64 · pkg
Release cadence: Weekly; 4 releases in 30 days

Mac Performance Monitor is Utilities software for Mac. It is made by Zesty0wl.

Quick facts

Chips: Apple silicon
macOS: macOS 15 or later
Price: Free · Price details
Developer: Zesty0wl
Install: brew install --cask mac-performance-monitor
Homebrew: Available; the app updates itself
Also known as: mac-performance-monitor

These facts were checked on or after Oct 17. See each source

About

Mac Performance Monitor is a free, open-source native macOS application for live system readings and recorded performance history. Use its menu-bar readout, background recorder or main window independently. The official distribution requires an Apple-silicon Mac running macOS 15 or later and provides a Developer ID-signed, notarized installer.

Monitoring and investigation

Review CPU, memory, GPU, disk, network, battery and sensor information. Explorer aligns machine and process charts on a timeline so you can compare processes, pin a moment, inspect values and export visible data. Recorded history stays on your Mac. Missing readings and metrics that older logs never recorded are not reconstructed as real measurements.

Processes and alerts

Sort and filter processes, inspect their history, and group related applications and helpers. An optional approved helper provides broader process coverage. Alerts use observed changes such as continued swap growth or sustained process activity; growth alone is not proof of a memory leak. Disk Map scans readable files and folders to help investigate storage use. GPU bandwidth values are preview estimates, and Neural Engine counters depend on hardware, OS and helper availability.

Version 2.3.0 and AI integration

Build 279 adds temperature-unit preferences, screen-capture slowdown insights and a rebuilt Ask interface for macOS 27. Ask explains local recorded data using Apple's on-device model. The bundled read-only mpm command-line tool and MCP server support optional external AI-agent investigation; an external agent sends the data it reads to its own provider. Version 2.3.0 removes the older optional Qwen and DeepAnalyze downloads and their local worker, so those earlier preview choices should not be assumed available. Generated explanations can be wrong and are not a verified diagnosis.

Installation and privacy

Install the exact Homebrew cask or use the official release installer. Existing installations can check for updates through Sparkle. Monitoring history stays local and the project reports no usage telemetry; update checks, downloads and optional network tools still make network requests. Optional agent sharing should be evaluated separately from the app's local-recording behavior.

Sources

Mac Performance Monitor price and purchase options

Prices OpenNavo has checked, by region, edition and billing period, with sources and dates. OpenNavo keeps no price history and never calls a price the lowest.

Edition	Price	Region	Where to buy	Checked
—	Free	—	Official websitemacperformancemonitor.com	Oct 17

System requirements

macOS	Version	Chips	Download	Source
macOS 15 or later	2.4.0.289	Apple silicon	github.com/Zesty0wl/mac-performance-monitor/releases/download/v2.4.0.289/MacPerformanceMonitor.pkgSHA-256 `93757984ad9349a6b05e641d2bada2a478079ec9dc9cd97de024be01fb9b3c3a`	HomebrewChecked Oct 23

How to install Mac Performance Monitor on Mac

In Terminal, run: brew install --cask mac-performance-monitor
Homebrew runs the MacPerformanceMonitor.pkg installer, which asks for an administrator password.

Install without Homebrew

Download the same file Homebrew uses: github.com/Zesty0wl/mac-performance-monitor/releases/download/v2.4.0.289/MacPerformanceMonitor.pkg

SHA-256 only checks that the download is complete; it is not a security certification. See the SHA-256 and download address

Uninstall Mac Performance Monitor and optional data cleanup

Uninstall command

brew uninstall --cask mac-performance-monitor

A regular uninstall removes the app and keeps its settings and caches.

Uninstalling also removes

Background services (launchctl): uk.co.bzwrd.macperfmonitor.helper
Installer receipts (pkgutil): uk.co.bzwrd.macperfmonitor

Deep clean (optional)

Uninstall command

brew uninstall --zap --cask mac-performance-monitor

--zap also deletes the settings, caches and other files listed in the Homebrew definition. They can include data shared with other apps and cannot be restored, and it does not guarantee that nothing is left. Back up any data you need first. To keep settings and caches, leave out --zap.

Files Mac Performance Monitor can leave on your Mac (5)

Files and folders: ~/Library/Application Support/MacPerformanceMonitor; ~/Library/Caches/uk.co.bzwrd.macperfmonitor; ~/Library/HTTPStorages/uk.co.bzwrd.macperfmonitor; ~/Library/Preferences/uk.co.bzwrd.macperfmonitor.plist; ~/Library/Saved Application State/uk.co.bzwrd.macperfmonitor.savedState

These entries come from the Homebrew definition, checked Oct 23. They say what it declares, not what is on your Mac.

What’s new in 2.4.0.289

New OpenNavo editorial

Reorganizes the GPU tab and consolidates charts. Reduces recorder and menu-bar memory use through reusable chart images and bounded caches, and releases unused UI data when closed. Streams history reads and fixes resizing and overlap in process details. Recording and alerts remain intact.

See all 10 releases

Mac Performance Monitor security facts

Only facts that can be checked, each with its source and date. This is not a safety certification. To check the files you downloaded, scan them on your Mac with OpenNavo.

Distribution: Homebrew
Open source: Yes · github.com/Zesty0wl/mac-performance-monitor · MITChecked Oct 14

Scan with OpenNavoOpens a scan preview in the OpenNavo app; you decide whether to start it. Learn about Security

Install Details

Tap: homebrew/cask
Installer packages: MacPerformanceMonitor.pkg
Download URL: https://github.com/Zesty0wl/mac-performance-monitor/releases/download/v2.4.0.289/MacPerformanceMonitor.pkg
SHA-256: 93757984ad9349a6b05e641d2bada2a478079ec9dc9cd97de024be01fb9b3c3a
Homebrew definition: github.com/homebrew/homebrew-cask/blob/HEAD/Casks/m/mac-performance-monitor.rb
formulae.brew.sh: formulae.brew.sh/cask/mac-performance-monitor
Source code: github.com/Zesty0wl/mac-performance-monitor

Installation and removal contents

Uninstall uninstall

View full declaration

{
  "uninstall": [
    {
      "launchctl": "uk.co.bzwrd.macperfmonitor.helper",
      "pkgutil": "uk.co.bzwrd.macperfmonitor",
      "quit": "uk.co.bzwrd.macperfmonitor"
    }
  ]
}

Install pkg
Source file: MacPerformanceMonitor.pkg
View full declaration
```
{
  "pkg": [
    "MacPerformanceMonitor.pkg"
  ]
}
```

Remove user data zap

View full declaration

{
  "zap": [
    {
      "trash": [
        "~/Library/Application Support/MacPerformanceMonitor",
        "~/Library/Caches/uk.co.bzwrd.macperfmonitor",
        "~/Library/HTTPStorages/uk.co.bzwrd.macperfmonitor",
        "~/Library/Preferences/uk.co.bzwrd.macperfmonitor.plist",
        "~/Library/Saved Application State/uk.co.bzwrd.macperfmonitor.savedState"
      ]
    }
  ]
}

Questions about Mac Performance Monitor

Is Mac Performance Monitor safe?

Mac Performance Monitor is in Homebrew’s official catalog and has not been disabled. Since September 2026, Homebrew disables apps that fail macOS Gatekeeper checks. When installing, Homebrew checks the download from github.com against its SHA-256 checksum. It was installed 254 times through Homebrew in the last 30 days.

Is Mac Performance Monitor free?

Yes, Mac Performance Monitor is free to use. Source: macperformancemonitor.com, checked Oct 17.

Is Mac Performance Monitor open source?

Mac Performance Monitor’s source code is public on GitHub (Zesty0wl/mac-performance-monitor) under the MIT license.

How do I completely uninstall Mac Performance Monitor on a Mac?

Run brew uninstall --cask mac-performance-monitor. It quits the app, stops 1 background service, and forgets 1 installer receipt. To delete its settings and caches as well, run brew uninstall --zap --cask mac-performance-monitor. --zap also deletes the settings, caches and other files listed in the Homebrew definition. They can include data shared with other apps and cannot be restored, and it does not guarantee that nothing is left. Back up any data you need first. To keep settings and caches, leave out --zap. That also deletes 5 files and folders, including ~/Library/Application Support/MacPerformanceMonitor.

Does Mac Performance Monitor run on Apple silicon (M1 and later) Macs?

Yes, and only there: it does not install on Intel Macs. It needs macOS 15 or later.

Where does Mac Performance Monitor store its settings and data?

Its settings are in ~/Library/Preferences/uk.co.bzwrd.macperfmonitor.plist. Its data is in ~/Library/Application Support/MacPerformanceMonitor. These locations come from Homebrew’s clean-up list.

What is the latest version of Mac Performance Monitor?

The latest version is 2.4.0.289, added to Homebrew on Oct 17. Mac Performance Monitor updates itself; to update it with Homebrew, run brew upgrade --cask --greedy mac-performance-monitor.

What else does installing Mac Performance Monitor add?

It installs through a .pkg installer, which asks for an administrator password.

Sources

Every fact on this page names its source and check date. Facts past their validity read “as of” their date and are no longer stated as current.

Homebrew definition: github.com/homebrew/homebrew-cask/blob/HEAD/Casks/m/mac-performance-monitor.rb · Checked Oct 23
formulae.brew.sh: formulae.brew.sh/cask/mac-performance-monitor
Price: macperformancemonitor.com · Checked Oct 17
Security facts: github.com/Zesty0wl/mac-performance-monitor · Checked Oct 14

Install command

brew install --cask mac-performance-monitor

Token: mac-performance-monitor
Homepage: macperformancemonitor.com
Updates: Updates itself (auto_updates)

Monthly installs

Installs are growing

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Item	Value
Last 30 days	254 installs
90-day avg	113 installs
1-year avg	28 installs