Portsmith · Download

Download Portsmith for macOS

Get the current Developer ID-signed and Apple-notarized Portsmith disk image directly from this site. No account or payment card is required to download or start the trial.

  • Version 0.8.0 · build 29
  • Published July 22, 2026

Current release

Portsmith 0.8.0

  • RequiresmacOS 26.0 or later
  • ProcessorApple silicon (arm64)
  • DistributionDeveloper ID signed and Apple notarized
  • Trial3 days, started by you inside the app
Download Portsmith.dmg

Direct download for Apple silicon Macs. Portsmith is not available from the Mac App Store because sandboxing blocks the process enumeration a local port manager needs.

Install Portsmith in four Finder steps

  1. 1Download and open Portsmith.dmgThe disk image comes directly from updates.portsmith.app.
  2. 2Drag Portsmith to ApplicationsWait for Finder to finish copying the app before continuing.
  3. 3Eject the Portsmith disk imageThe mounted installer is no longer needed after the copy completes.
  4. 4Open Portsmith from ApplicationsPortsmith launches as a menu-bar app rather than a normal app window.

On first launch, macOS may show its standard downloaded-app confirmation. Choose Open. A genuine Portsmith download should not require you to weaken Gatekeeper or change security settings.

What happens after installation

Portsmith appears in the menu bar and walks you through its listener list before asking whether to start the trial. It requests no Screen Recording, Accessibility, Full Disk Access, Apple Events, or administrator permission.

  • The trial does not start automatically.
  • Your listener and process data stays on your Mac.
  • Sparkle offers signed updates inside the app; it never silently installs them.
  • Agent Island is built in: inspect observed sessions, focus their Host apps, stop eligible local agents without closing those hosts, and optionally show activity beside a supported MacBook notch without adding another menu-bar item.

Verify the official release feed

Advanced users can inspect the public Sparkle feed at updates.portsmith.app/appcast.xml. It identifies the current version, build, minimum macOS version, architecture, download length, and EdDSA signature used by Sparkle.