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NetCheck

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Know your internet is actually working, not just your Wi-Fi

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About NetCheck

What is NetCheck?

NetCheck is a lightweight macOS menu bar app that tells you whether your internet is actually working — not just whether your Wi-Fi is connected. Your Mac's Wi-Fi indicator only checks the local network. If your router is up but the ISP is down, or you're behind a captive portal, it still shows full bars. NetCheck closes that gap. It runs a periodic HTTP probe to a real endpoint and verifies the response — something a captive portal can't fake. If the primary probe fails, it falls back to a secondary check. The result shows up as a single dot in your menu bar: green means you have real internet, grey means you don't. When it's grey, a network path diagram shows exactly where the problem is — your Mac, your router, or your ISP. Open the popover and you get a live response time meter, your ISP identified automatically, a VPN indicator when you're connected through one, and the last verified timestamp. You can set how often NetCheck checks — anywhere from 5 seconds to 5 minutes. When your connection drops or comes back, you get a notification instantly. It launches at login so it's always there. No dock icon. No Cmd+Tab entry. No account. No ads. No data collected. Just a dot that tells you the truth about your internet. NetCheck is free. NetCheck Pro ($9.99, one-time, no subscription) adds Network History with a 0-100 reliability score, custom probe endpoints for monitoring any URL, CSV export, and Shortcuts integration for automating checks. Built with SwiftUI, zero third-party dependencies, fully sandboxed, and available on the Mac App Store. Watch the demo: youtu.be/9iidfePDP3Y

Problem this tool solves

macOS shows full Wi-Fi bars even when the ISP is down — no built-in way to know.

How it solves the problem

A menu bar dot that probes real internet access and alerts you on drop or restore.

Target Audience

Mac users who work from home, use AI tools, or need reliable internet for calls and remote work.

Use Cases

  • · Detect internet drop during video calls
  • · Monitor connectivity during AI tasks

Main Features

Green/grey dot statusLive response time gaugeDrop & restore notificationsNetwork path diagramVPN & ISP detection

Categories

Developer ToolsProductivityAI

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macOS

Pricing

Pricing Type: Freemium

Articles about NetCheck

Jun 18, 2026
Why Your Mac's Wi-Fi Bars Lie — And How NetCheck Fixes It
macOS shows full Wi-Fi signal even when your internet is actually down. NetCheck is a free menu bar app that confirms real connectivity with a lightweight probe — so you always know the truth.
NetCheckNetCheckProductivitySide Projects & HacksDeveloper Tools

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