NeTTeR

Network Tools Suite for macOS

Version 1.0

A comprehensive network diagnostics suite for macOS—34 tools for monitoring, analysis, and troubleshooting, built with SwiftUI for network engineers, administrators, and developers.

Download v1.0 Documentation

macOS 26 (Tahoe) or later · Apple Silicon & Intel · Released May 15, 2026

34
Tools
2
Categories
1.0
Version
MIT
License

About NeTTeR

NeTTeR provides local and remote network diagnostics in one searchable interface. Monitor bandwidth, trace routes, analyze certificates, flush DNS caches, and more—without switching between terminal utilities.

This release includes in-app Help (every tool under Help → NeTTeR Help) and an expanded About window with a Developer & account tab.

Key Features

  • Modern interface with search, filters, dark mode, and menu bar access
  • Real-time monitoring for bandwidth, connections, and network health
  • Export & clipboard support on table-based tools
  • Command palette (⌘K) for keyboard-driven navigation
  • macOS 26 baseline with Swift 6 and current Xcode tooling

Tools

Local Tools

  • ARP — IP to MAC mappings
  • Bandwidth Monitor — Real-time usage
  • Connection Monitor — Active connections
  • DNS Cache Flusher — Clear and test DNS
  • Network Health Dashboard — Metrics overview
  • Netstat — Ports and routing
  • Route — Routing table
  • SNMP Monitor — Device statistics
  • + 9 more — see documentation

Remote Tools

  • DIG — Advanced DNS queries
  • Ping — Connectivity and RTT
  • Port Scanner — Open ports and services
  • Traceroute — Path and hop latency
  • SSL/TLS Analyzer — Certificates and ciphers
  • Network Quality — Loss, jitter, latency
  • Whois — Domain and IP ownership
  • Wake-on-LAN — Remote wake packets
  • + 7 more — see documentation

System Requirements

Requirements

OS: macOS 26 (Tahoe) or later

CPU: Intel (x86_64) or Apple Silicon (ARM64)

RAM: 4GB minimum, 8GB recommended

Developer

Name: Eric Cain

Email: software-support@ecain.org

Site: ecain.org/netter

Screenshots

NeTTeR main tool grid

Main tool grid

Searchable cards for Local, Remote, or All tools.

DIG advanced DNS query

DIG

DNS queries by record type with TTL in copy-friendly cards.

IP Geolocation lookup

IP Geolocation

Location, timezone, ISP, and organization data.

Network Quality test

Network Quality

Loss, latency, jitter, and per-packet trace.

SSL TLS certificate analyzer

SSL/TLS Certificate Analyzer

Validity, chain, cipher, and expiry for live TLS hosts.

WHOIS domain lookup

WHOIS

Registrar, contacts, and nameserver data.

New in v1.0

  • macOS 26 (Tahoe) baseline — Modern SwiftUI and system APIs
  • Swift 6 ready — Concurrency tightened across managers and UI
  • Command palette — ⌘K toggles palette in sync with the menu
  • Shared UI components — Charts, metric cards, toasts, and shortcuts
  • Standard packaging — neTTer-1.0.dmg is the release download

On the roadmap

  • Packet capture and analysis
  • Richer traffic visualization and historical metrics
  • Alerts, customizable dashboards, and performance baselines

Download NeTTeR

Requires macOS 26 (Tahoe) or later. Apple Silicon and Intel supported.

Download neTTer-1.0.dmg