Best for

Developers running several local servers and coding agents who need to find leaks before the fan spins up.

Why it deserves attention

WhatThePort is a native Swift menu bar app that lists every local dev server with its port, project, git branch, memory use, and the Claude Code, Codex, Conductor, or Pane session that started it. It links back to the agent conversation or the Vercel preview for the same commit, turns amber when a server passes 2 GB or grows 500 MB in ten minutes, and can stop a server's own process tree without touching sibling servers; Postgres and Redis are protected by default. A `wtp` TUI exposes the same list and cleanup actions to scripts and agents. It is MIT-licensed, free, requires macOS 14 or later, and keeps everything local with no account. The trade-off is that agent-session linking depends on those tools' hooks, and it is a focused menu bar utility rather than a full process monitor.

Ratings & reviews

0 ratings

—/ 5

0 people rated this

Rating distribution

50

40

30

20

10

No ratings yet. Be the first to rate this tool.

Can replace

lsof

Related and alternatives

More in Developer utilities

Blob0

Underrated

Blob0

A Mac S3 client that treats R2, S3, MinIO, B2, and OSS buckets like local folders, with a CLI and agent skill.

macOSCLIFreemium

MrScraper

Underrated

MrScraper

An AI scraping API that turns messy pages into HTML, Markdown, screenshots, brand assets, or typed JSON.

WebFreemium

Cloudflare Billing Helper

Underrated

Cloudflare Billing Helper

A menu-bar app and browser extension that turn Cloudflare's billable usage page into quota, forecast, and per-app cost views.

macOSWebFree