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Berth
Watch and release your dev ports from the macOS menu bar
Berth is a free, open-source macOS menu bar app for developers: watch the ports your projects use, release them in one click. A one-click alternative to lsof + kill. Notarized, Apache-2.0, signed automatic updates.
"Port 3000 is already in use."
If you write software on a Mac, you've typed that error into your terminal
this week — and then done the dance: lsof -i :3000, squint at the PID, kill
-9, hope you didn't just nuke the wrong process. I did it a dozen times a
day, and one day I realized I'd memorized a command I should never have
needed to memorize.
So I built Berth. It lives in your menu bar, shows every port your projects
are actually using, groups them by project (Next.js, Vite, Django, Postgres,
Docker containers...), and lets you release a port with one click — with a
clear confirmation before anything gets stopped. Force-kill exists, but only
when you explicitly ask for it.
A few things I cared about from day one:
🔒 Trust first — a tool that can kill processes should earn it. Every build
is signed, notarized by Apple, and stapled. Updates ship over HTTPS with
EdDSA signatures via Sparkle.
🔓 Fully open source (Apache-2.0), including the release pipeline itself.
No telemetry, no analytics, no accounts — the app makes zero network calls
on its own.
🧘 Small on purpose — no windows, no daemons, no dashboard. One compact
panel, English and 简体中文, light and dark.
It started as a weekend port-watcher, then grew project cards, framework
detection, pinned "berths" for your daily ports, and in-panel updates —
while I kept cutting features that didn't earn their place.
Berth is free, forever. Requires macOS 14+, Apple Silicon.
I'd love your feedback — especially on what you'd want it to do (or stop
doing). What does your port workflow look like?
About Berth on Product Hunt
“Watch and release your dev ports from the macOS menu bar”
Berth was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #157 on the daily leaderboard. Berth is a free, open-source macOS menu bar app for developers: watch the ports your projects use, release them in one click. A one-click alternative to lsof + kill. Notarized, Apache-2.0, signed automatic updates.
On the analytics side, Berth competes within Open Source, Developer Tools, GitHub and Menu Bar Apps — topics that collectively have 641.3k followers on Product Hunt. The dashboard above tracks how Berth performed against the three products that launched closest to it on the same day.
Who hunted Berth?
Berth was hunted by Cerebellum. 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 Berth including community comment highlights and product details, visit the product overview.
Cerebellum