A beautiful, powerful, and FREE alternative to iStat Menus, CleanMyMac, and Stats
Looking for a free alternative to iStat Menus or CleanMyMac? SystemMonitor Pro is a 100% free, open-source system monitor for Mac that rivals premium apps costing $50+.
- Native macOS app - Built with SwiftUI for Apple Silicon (M1, M2, M3, M4) and Intel
- Beautiful dark UI - Professional NOC-style dashboard
- Lightweight - Only ~700KB, uses minimal resources
- Privacy-focused - No data collection, no analytics, no internet required
- Open source - See exactly what the code does
- CPU - Live usage percentage with historical graph
- Memory - RAM consumption with used/total breakdown
- Disk - Storage space monitoring and read/write speeds
- Temperature - CPU and GPU thermal readings
- Battery - Health percentage, cycle count, charging status
- Network - Upload and download speeds
- Smart Clean - One-click comprehensive system cleanup (NEW!)
- Cache Cleaner - Remove Safari, Chrome, Xcode, system caches
- Large Files Finder - Find and delete space-hogging files
- App Uninstaller - Complete removal with leftover cleanup
- RAM Optimizer - Free up unused memory instantly
- Hardware Integrity Check - Verify hardware authenticity and detect modifications
- Disk Health - S.M.A.R.T. status monitoring for all drives
- Process Manager - View and kill running processes
- Startup Manager - Control login items and launch agents
- System Report - Export comprehensive system information
- Menu Bar Integration - Always accessible from your menu bar
- Color-coded Status - Green/Yellow/Red based on system health
- Smart Alerts - Get notified when CPU, RAM, or Disk is high
- Configurable Refresh - Set update interval (1-10 seconds)
- Keyboard Shortcuts - Quick access with hotkeys
No Xcode needed - just download and use!
- Go to Releases
- Download
SystemMonitor-v2.2.0.zip - Unzip and drag
SystemMonitor.appto/Applications - Done!
First Launch: Since the app is not from the App Store, macOS requires approval:
- Right-click on SystemMonitor.app
- Click "Open"
- Click "Open" again in the popup
Or: System Settings > Privacy & Security > Open Anyway
Requirements:
- macOS 14.0+
- Xcode 15+
git clone https://github.com/sulimanapps/SystemMonitor.git
cd SystemMonitor
open SystemMonitor.xcodeprojIn Xcode: Select your Team in Signing, then Cmd + R to build.
| Requirement | Minimum |
|---|---|
| macOS | 14.0 (Sonoma) or later |
| Chip | Apple Silicon (M1/M2/M3/M4) or Intel |
| RAM | 4 GB |
| Disk | 50 MB |
- Launch - Click the CPU icon in your menu bar
- Monitor - View real-time system metrics on the dashboard
- Clean - Use action buttons to clean cache, optimize RAM, find large files
- Settings - Click the gear icon to configure alerts and refresh rate
| Shortcut | Action |
|---|---|
Cmd + Q |
Quit Application |
Cmd + , |
Open Settings |
Cmd + R |
Refresh System Data |
Cmd + 1 |
Show Dashboard |
Cmd + 2 |
Show Apps List |
Cmd + 3 |
Show Large Files |
Cmd + W |
Close Window |
| Feature | SystemMonitor Pro | iStat Menus | CleanMyMac |
|---|---|---|---|
| Price | FREE | $11.99 | $89.95/yr |
| Open Source | Yes | No | No |
| CPU/RAM/Disk Monitor | Yes | Yes | Yes |
| Temperature Monitor | Yes | Yes | No |
| Battery Health | Yes | Yes | No |
| Cache Cleaner | Yes | No | Yes |
| App Uninstaller | Yes | No | Yes |
| Menu Bar App | Yes | Yes | No |
| Apple Silicon Native | Yes | Yes | Yes |
SystemMonitor/
├── SystemMonitorApp.swift # App entry point
├── StatusBarController.swift # Menu bar management
├── DashboardView.swift # Main dashboard UI
├── SystemMonitor.swift # Core system metrics
├── FeatureManager.swift # Extended features
├── CacheManager.swift # Cache scanning/cleaning
├── AppManager.swift # App uninstall logic
├── Theme.swift # UI theming
└── ... # Additional components
- SwiftUI - Modern declarative UI framework
- AppKit - Native macOS integration
- Combine - Reactive data binding
- Darwin/IOKit - Low-level system APIs
- System apps are protected from uninstallation
- Files are moved to Trash, not permanently deleted
- Confirmation dialogs before any destructive action
- Running app detection with warnings
- Zero data collection - Everything stays on your Mac
# Run this in Terminal:
xattr -cr /Applications/SystemMonitor.appThen right-click > Open > Open
- Some Intel Macs don't expose temperature sensors
- Apple Silicon Macs show CPU temperature only
- Update to v2.0.4 or later (fixed in this version)
- Try increasing refresh interval in Settings (5-10 seconds)
- Check if menu bar is full - drag some icons out
- Try relaunching the app
- Run the app with Full Disk Access enabled
- System Settings > Privacy & Security > Full Disk Access > Add SystemMonitor
- GPU usage monitoring
- Fan speed control
- Custom menu bar display options
- Notification center widgets
- Hardware Integrity Check (battery, storage, display, memory verification)
- Disk health (S.M.A.R.T.)
- Process manager (kill apps)
- Startup items manager
- Export system report
- iOS companion app
- Multiple Mac monitoring
- Historical data & charts
- Homebrew installation
Contributions are welcome! Please read CONTRIBUTING.md for guidelines.
- Fork the repository
- Create your feature branch (
git checkout -b feature/amazing-feature) - Commit your changes (
git commit -m 'Add amazing feature') - Push to the branch (
git push origin feature/amazing-feature) - Open a Pull Request
This project is licensed under the MIT License - see the LICENSE file for details.
**Suliman ** Email: xsuliman@gmail.com GitHub: @sulimanapps
If you find this project useful, please consider:
- Giving it a star on GitHub
- Sharing it with others
- Reporting bugs to help improve it
Made with Swift for macOS
Free and open-source system monitor for Mac | Alternative to iStat Menus and CleanMyMac