With a cable, over Wi-Fi, or from anywhere

Use your other Mac from this one.

See and use your Mac Studio, Mac mini, or any other Mac right on your MacBook. It's sharp, it's smooth, and it feels like you're sitting in front of it.

Download for Mac See how it works

For Macs with Apple silicon and macOS 14.2 or later. Put it on both Macs. Version 0.20.1, 28 MB.

1:1

every pixel

Pick Best Color and every pixel arrives exactly as it left. Text stays sharp and colors stay true.

120

frames a second

Scrolling, video, and moving windows stay smooth, at up to 120 frames a second.

cable is enough

Plug any USB-C cable between two Macs and they find each other. Nothing to set up.

How it works

Set it up once. Then it's one click.

No account to make and nothing to sign in to. Pair your two Macs one time, and after that the other Mac is always one click away.

Install it on both Macs

Put TreasureScreen on the Mac you want to use and on the Mac you're sitting at.

Share the one you want to use

Click Share This Mac. A small icon appears in its menu bar, where you copy its connection link.

Connect from the other

Paste the link one time. After that, the other Mac is one click away.

Three ways to connect

With a cable

Connect the two Macs with a USB-C cable and they find each other. A Thunderbolt cable gives the best picture.

Over Wi-Fi

On the same network, your Macs find each other on their own. Away from home, connect through Tailscale with no router settings to change.

With an HDMI capture card

Plug in a capture card to see anything with an HDMI port, like a game console, a camera, or a Mac that isn't set up yet.

Features

It feels like you're sitting at it.

The moment you connect, your keyboard and trackpad work on the other Mac. Press ⌃⌘Esc any time to take them back.

Every shortcut works. ⌘Space, ⌘Tab, and the rest go to the other Mac, just like you'd expect.
Your fingerprint types the password. When the other Mac asks for its password, touch Touch ID here and it's typed for you.
Copy here. Paste there. Copy text or a picture on one Mac and paste it on the other.

Hear it here.

Music, videos, and calls on the other Mac play through this Mac's speakers or headphones.

Talk from here.

Your microphone works on the other Mac, so you can take calls and record from where you're sitting.

Cameras, both ways.

Use this Mac's camera on the other one, or bring its camera here. Any video app can pick it.

Plug in here. Open it there.

Thumb drives, SD cards, and external disks plugged into this Mac show up on the other one.

Your trackpad, as usual.

Click, scroll, pinch, and swipe the way you always do.

It stays awake.

While you're connected, the other Mac won't dim, sleep, or lock on you.

Windows and screens

Just need one window?

You don't have to take the whole screen. Bring over one window from the other Mac, or up to eight, and use each one like any window on this Mac.

Whole screeneverything, as it is

Every screeneach one on its own

One windowjust the app you need

A few windowsup to 8 at once

Tabs or windows, your pick. Keep them as tabs in one window, or spread them out as separate windows.
Always the right size. Make a window bigger or smaller here and the one over there follows, so it stays sharp.

iPhone and iPad

Your Mac, in your pocket.

TreasureScreen for iPhone and iPad shows your Mac and lets you use it with your fingers. Tap to click, drag two fingers to scroll, and type with a keyboard that has the Mac keys you need. The Mac's sound plays right on your phone.

The iPhone and iPad app isn't in the App Store yet.

Private

Your screen stays between your Macs.

There's no account and no TreasureScreen server in the middle. Your Macs talk straight to each other, and only a Mac you've paired can connect.

Nothing to sign up for

No account, no email, no password to remember. You pair your Macs with a private link.

Locked from end to end

Everything between your two Macs is encrypted, even over a cable.

Your link is your key

Anyone with your Mac's connection link can use it, so share it only with your own Macs or someone you trust.

For scripts and AI agents

Built for AI agents too.

TreasureScreen comes with a command you can type in Terminal. Anything you can do in the app, a script or an AI assistant can do too.

One command for everything. Show a Mac, click, type, take a screenshot, or turn the microphone on.
Easy for software to read. Add --json and the answer comes back in a form a program can use.
Nothing extra to install. The command comes with the app.

# Show your Mac Studio
$ treasurescreen view "Mac Studio"

# Click and type on it
$ treasurescreen click 640 400 && treasurescreen type "hello"

# Save what's on its screen
$ treasurescreen screenshot ~/Desktop/studio.png

# Lend it this Mac's microphone
$ treasurescreen mic on

Questions

Straight answers.

Do I need it on both Macs?

Yes. Install TreasureScreen on the Mac you want to use and on the Mac you're sitting at. Both need Apple silicon and macOS 14.2 or later.

Can my MacBook be the screen for my Mac mini or Mac Studio?

Yes. Once that Mac is set up and sharing is on, it doesn't need a monitor at all: with nothing plugged in, it makes its own screen sized to your MacBook. The very first macOS setup still needs a screen and keyboard, or a capture card to see it.

Will it lag or look blurry?

Over a cable or good Wi-Fi it's smooth, at up to 120 frames a second. For the sharpest text, pick Best Color in the Video menu and every pixel arrives exactly. On a slow connection a busy screen updates less often, but text and menus stay exact.

Does it work when I'm away from home?

Yes, through Tailscale. Install Tailscale on both Macs and TreasureScreen connects over it. You don't have to change anything on your router.

Is it hard to set up?

No. Install it, click Share This Mac on one Mac, and paste its link on the other. The first time, macOS asks you to allow screen recording and a couple of other things on the shared Mac.

What can't it do yet?

It can't control a Mac that's sitting at its login screen, or one where someone else is signed in at the screen. Unusual USB gadgets, like security keys and game controllers, can't be passed across. The iPhone and iPad app isn't in the App Store yet.

How do updates work?

TreasureScreen checks for a new version once a day and asks before it installs one. You can also choose Check for Updates in the TreasureScreen menu.

Your other Mac, right here.

Put TreasureScreen on both Macs, share one, and connect from the other.

Download for Mac

Version 0.20.1 · 28 MB · updated October 31, 2026 · Apple silicon · macOS 14.2+