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Bosun
Every port, tunnel, VPN, and container your Mac has open
Menu bar app for macOS that shows every listening port, active ngrok/Cloudflare tunnel, VPN connection, and Docker container mapped to the process that owns it, with one-click kill. Native Swift, no Electron. 14-day free trial.
I built this after losing an hour tracking down which of six Docker containers was squatting on port 5432 lsof and Activity Monitor show you a port, not what's actually reachable on your Mac right now.
Bosun puts everything in one menu bar view: every listening port, active ngrok/Cloudflare tunnels, VPN connections, and Docker containers, all mapped to the process that owns them, with one click kill. The part that made me actually finish building it: a tunnel you forgot was open is a real way attackers keep quiet remote access once they're in not just a dev-workflow annoyance.
Native Swift/SwiftUI, no Electron, no telemetry on your actual port/process data. 14 day free trial, no signup required. Would love your feedback, especially if you run a lot of local containers or dev tunnels day to day.
About Bosun on Product Hunt
“Every port, tunnel, VPN, and container your Mac has open”
Bosun was submitted on Product Hunt and earned 0 upvotes and 5 comments, placing #148 on the daily leaderboard. Menu bar app for macOS that shows every listening port, active ngrok/Cloudflare tunnel, VPN connection, and Docker container mapped to the process that owns it, with one-click kill. Native Swift, no Electron. 14-day free trial.
On the analytics side, Bosun competes within Productivity, Developer Tools and Menu Bar Apps — topics that collectively have 1.2M followers on Product Hunt. The dashboard above tracks how Bosun performed against the three products that launched closest to it on the same day.
Who hunted Bosun?
Bosun was hunted by Benjamín Wünkhaus Cepeda. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Bosun including community comment highlights and product details, visit the product overview.
Benjamín Wünkhaus Cepeda