NetUtil

Professional macOS Network Diagnostics Toolkit

NetUtil is a native macOS diagnostics toolkit built with SwiftUI and Swift 6. 28 integrated network tools — Ping, Traceroute, Connectivity Doctor, Subnet Scanner, SSL Inspector, IP Geolocation, and more — in a symmetrical, Anti-Slop interface with zero third-party dependencies.

Screenshots

Dashboard	Traceroute

Bandwidth Monitor	Speed Test

Installation

Requires an Apple Silicon Mac (M1 or later) running macOS Tahoe (26) or later. Intel Macs are not supported.

Homebrew

brew install --cask aderamdani/tap/netutil

Manual (DMG)

1. Visit Releases.
2. Download the latest NetUtil-X.X.X.dmg.
3. Open the DMG and drag NetUtil to Applications.

First launch: NetUtil is ad-hoc signed (not yet notarized), so macOS Gatekeeper blocks the first open. Right-click NetUtil in Applications and choose Open, or run xattr -dr com.apple.quarantine /Applications/NetUtil.app.

Command-line tool

A small companion CLI that wraps the same system tools the app uses (ping, traceroute, dig, whois, networkQuality).

bash scripts/build_cli.sh        # builds CLI/.build/release/netutil
netutil ping 1.1.1.1 10
netutil traceroute apple.com 20
netutil dns apple.com MX
netutil whois apple.com
netutil speed

It is a standalone SwiftPM package under CLI/; unifying it with the app in a shared NetUtilCore framework is planned for v5.0.0.

Documentation & Links

• AGENTS.md — Architecture, coding standards, release workflow, HIG rules.
• docs/ARCHITECTURE.md — Full codebase map: structure, ToolStore, all 28 tools, subprocess patterns, concurrency, data models, export system.
• docs/CHANGELOG.md — Version history.
• docs/ROADMAP.md — Planned features.
• docs/TESTING.md — QA test scenarios and bug ledger.
• docs/CONTRIBUTING.md — Contribution guidelines.
• docs/SECURITY.md — Security policy.

License

MIT License — see LICENSE.

_{Built by Ade Ramdani. Native Swift. Zero Third-Party Dependencies.}