Every server. One window.
The fast, native SSH client for Mac power users: split panes, safe broadcasting, live log highlighting, SFTP and jump hosts, in one calm workspace.
Multiplex is in development and not available yet. This page will link to the App Store when it’s released, and to the source code once the repository is public.
Measured in our tests on Apple-silicon Macs against local servers. Real-world numbers depend on your network.
Overview
Multiplex is built for engineers who look after dozens or hundreds of machines. Your whole fleet lives in one searchable sidebar, sessions open in tabs and split panes, and the errors in a scrolling log light up the moment they appear.
It's a truly native Mac app, written in Swift for Apple silicon, so it starts in a blink and stays fast under a flood of output. And because every connection runs in its own sandbox, it treats your infrastructure with the care a security tool should.
Multiplex is in development. These describe the product direction and may change before release.
Folders inside folders, tags, notes and instant search. Production hosts wear a bright PROD badge everywhere they appear.
Split, resize and drag panes into any layout. Your open tabs come back right where you left them after a restart.
Errors in red, warnings in amber, IP addresses underlined, as the output streams in. Copy and paste keep the original text.
One search box for open sessions, saved hosts and commands. Type a few letters, press Return, and you're there.
Assign one key or password to whole folders. Rotate it in one place, and every host picks it up.
Swift, AppKit and SwiftUI, with VoiceOver support and seven built-in themes. No Electron, no web views.
Broadcast
Rolling restarts, health checks and fleet-wide fixes in one go. Broadcasting panes are framed in red, the bar shows exactly who's listening, and production never receives a keystroke by accident.
SFTP
Open a file browser for any session: your Mac on one side, the server on the other. It reuses the connection you already have, so there's no second login and no second two-factor prompt.
Jump hosts and tunnels
Set a jump host once and Multiplex connects through it every time, chains included. Save port forwards with the host, and they start with the connection.
Switch in minutes
Import from your OpenSSH config, CSV files, shell aliases or SecureCRT sessions. Multiplex shows what's new, what changed and what stays the same before anything is saved, and you can undo it.
A closer look
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(opens in a new tab)Why Multiplex
Every SSH connection runs in its own sandboxed helper process. Even a malicious server exploiting a bug would land in an empty box, far from your files and your Keychain.
A native Apple-silicon app with no web views. Output floods don't freeze it, and Ctrl-C brings your prompt back almost instantly.
Per-host compatibility profiles reach older Linux systems and network gear, while every other connection stays on modern, secure settings.
A small yearly subscription instead of a large license fee, with automatic updates and support included.
Privacy and open source
If you buy Multiplex through an app store, that store processes the transaction under its own privacy policy. See our privacy policy for details.
Multiplex’s source code is public, so anyone can review how it works and report issues in the open. A subscription is the easy way to use it, with automatic updates and support, and it funds continued development.
The repository link will appear here once it’s public. How we work in the open
Availability
Price to be announced
A small annual subscription. The final price will be shown on its store listing.
Annual subscription. Renews automatically under the terms shown at purchase, and can be canceled anytime from your store account.
FAQ
Multiplex is in its final stretch of development. We'll release it when it's dependable, and this page will link to the App Store as soon as it's available.
It's an SSH client with a fast built-in terminal, designed for working on remote servers rather than replacing your local shell.
Yes. Multiplex imports OpenSSH config files, CSV, shell alias files and SecureCRT sessions, and shows a preview before anything is saved.
Only in the macOS Keychain. They're never written to the host list or included in exports, except inside an encrypted bundle you create with your own passphrase.
Yes. Chains of jump hosts work, and each hop verifies its own host key. Per-host compatibility profiles connect to older systems without weakening your other connections.
Multiplex is built for Macs with Apple silicon (M1 or newer) running macOS 26 or later.
Like every OpenAppBox app, Multiplex will be an annual subscription with a deliberately small price. The final price will be shown on the App Store.
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