Matric is 100% Free & Open Source on GitHub→

The macOS Activity Monitor built for developers.

Live developer port monitoring (:3000, :8000), 1-click conflict kill, dev cache cleanup, and Apple Silicon telemetry. Written in pure native Swift with < 20 MB RAM.

View on GitHubFree & Open SourceExplore Documentation→
100% Free (MIT License)Native Swift · Zero ElectronAir-Gapped & 100% Private
Matric macOS App
Matric Developer Projects View Screenshot
Live Capture:Active dev servers, listening sockets (:3000, :8000), Git branch context
Native Swift 6.0·Apple Silicon M1-M4 Optimized

Core Capabilities

Everything developers need. Nothing they don't.

Port Intelligence:3000, :8000, :5432

Instant Port & Conflict Killer

Never get blocked by EADDRINUSE. Identifies the PID, process name, and Git branch squatting on your port, and kills it with one click.

Matric Port Inspector Screenshot
Disk Reclaim37+ GB Cleanable

Developer Cache & Artifact Purge

Reclaim gigabytes instantly. Safely purges stale node_modules, Xcode DerivedData, Cargo caches, and Docker dangling images.

Matric System Cleanup Screenshot
Apple Silicon Native10 Cores · LPDDR5

Multi-Core CPU & Memory Pressure

Real-time Mach VM memory allocation, Apple Silicon per-core distribution, and Darwin BSD network sockets with zero Electron overhead (< 20 MB RAM).

Matric Processor Telemetry Screenshot
Time-TravelLocal SQLite Ledger

Long-Term Performance History

Did a daemon crash while you stepped away? Scrub backward through high-resolution hardware history to inspect the exact second memory spiked or leaked.

Matric History Diagnostics Screenshot
Tactile Shortcuts

Stay in flow without touching your mouse

Global hotkeys summon Matric from any workspace or editor in milliseconds.

⌘K

Fuzzy Filter

Instantly search active ports, processes, or Git branches.

⌘.

Kill Port

Instantly terminate the squatted process and free the socket.

⌘⇧M

Global Summon

Bring Matric to the front from Cursor, VS Code, or Terminal.

Comparison

How Matric compares

CapabilityMatricmacOS Activity Monitorhtop / CLI
Developer Port Tracking (:3000, :8000)✔ Real-time auto-detected❌ None❌ None (needs lsof)
1-Click Kill Port & Release✔ 1-Click instant❌ Manual PID search❌ Manual kill -9
Developer Cache & Artifact Purge✔ Built-in (37+ GB)❌ None❌ None
Child & Helper Process Aggregation✔ Consolidated hierarchy❌ Flooded with 50+ helpers❌ Flat thread list
Memory & CPU Overhead< 20 MB (Native Swift)~40 MB (AppKit)< 10 MB (C/C++)
License & Cost100% Free (MIT)Free (Proprietary macOS)Free (GPL)

Upgrade your macOS developer workspace

Never waste another minute diagnosing hung local ports or bloated build caches. Matric is 100% free and open source.

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Supports macOS 14 Sonoma & macOS 15 Sequoia · 100% Native Swift