Hey everyone — I'm Tulon, the developer behind NetCheck. macOS shows Wi-Fi bars, but there's no built-in way to know if the internet is actually working — not just the local network. Most existing tools for this are paid, and the free ones feel cluttered or outdated. I wanted something minimal, so I built it myself. There was also a more specific trigger: I use Claude Code (Anthropic's AI CLI tool) for development. When a long AI task is running in the background, a dropped connection can silently break the whole session — and you only find out when it's too late. I needed a persistent indicator always visible in my menu bar. NetCheck is that indicator. A single dot: green means really online, grey means you're not. It launches at login so it's always there — you never have to think about it. Lightweight probe on a timer, notifications when the connection drops or restores, and a live response time meter when you open it. Built entirely with Claude Code — pair programming where the AI is very fast and never gets tired. The core came together in a single day. After using it myself for a while, I thought — why not share it? It's free, no ads, no account, no dock icon. Curious: has anyone run into edge cases with this — VPNs, corporate proxies, captive portals? I'd love to know how it behaves on different setups. And if there's a macOS problem you've always wished someone would solve — drop it below. Always looking for the next thing worth building. — Tulon | metulon.com

NetCheck

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

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