NewWindows in both directionsbeta
One keyboard and mouse, a shared clipboard, Mac audio and windows in both directions. Over your local network, with no account.
Four features, one app on both computers.
The cursor crosses the edge of the screen. Ctrl works as ⌘ if you want it to.
Copy here, paste there. Text is free; photos and screenshots come with Pro.
Every sound from the Mac, in the headphones plugged into your PC.
Mac windows on the Windows taskbar, Windows apps in the Mac's Dock.
Every feature has its own page in the app.
Keyboard and mouse · 2 of 5
Step 1
One app for the Mac, one for the Windows PC. No account, and no installer on Windows.
Step 2
The Mac shows a pairing code. Type it on Windows and the computers are connected.
Step 3
Past the edge of the screen, and you're working on the other computer with the same keyboard and mouse.
Security and privacy
Seam works only on your local network. No servers, no account, no cloud. You pair the computers with a one-time code, and the secret goes into the Keychain on the Mac and DPAPI on Windows. Control, clipboard and audio are encrypted and protected against replay.
Encryption
AES-256-GCM
for control, clipboard and audio
Servers in between
0
everything stays on your local network
Every update
ECDSA
signature and SHA-256 checked before it installs
Seam goes online only to check for updates and, if you want, to download the virtual monitor driver. With Pro, it also checks your license key with Lemon Squeezy about once a week. Logs stay on your computer.
Privacy policyKeyboard, mouse and text stay free forever. Pro adds audio, windows and images. No subscription.
| What's included Pro works on both computers when either of them has a license or a trial. |
Free $0 forever, no account |
Pro 7 days free $10 once, no subscription |
|---|---|---|
| One keyboard and mouse with your screen layout | ||
| Text in the clipboard | ||
| Images and screenshots in the clipboard | ||
| Mac audio on the PC | ||
| Mac windows on the PC on a virtual display | ||
| Windows apps on the Mac | ||
| Local network only, AES-256-GCM | ||
| Signed automatic updates | ||
| Download free | Buy Pro – $10 |
Pro works on both computers when either of them has a license or a trial.
Every Pro feature, no account, no card. The trial starts when you first turn on a Pro feature, not when you install Seam.
Activate one license on up to three computers, and a pair needs only one. Move it any time with Deactivate in Settings.
A perpetual license with every Seam 3.x update. Works offline for 30 days at a time. Refund policy
Yes. Both computers need to be on the same local network. A cable gives the lowest latency, especially for audio and windows.
You pay $10 once, with no subscription. The license key arrives by email; enter it in Seam → Settings → License. The license never expires and includes every Seam 3.x update.
Up to 3 computers per license. You only need one license for a pair: Pro works on both computers when either of them has a license or a trial. To move the license to a new computer, choose Deactivate on the old one.
The trial lasts 7 days and needs no account or card. When it ends, audio, windows and images in the clipboard pause until you buy Pro, and your settings stay as they were. Keyboard, mouse and text in the clipboard keep working, free forever.
Yes. Seam itself only needs your local network. Pro checks the license about once a week when the computer is online and keeps working offline for up to 30 days after the last check. After that, connect for a moment and Seam checks it again.
Yes. Payments and refunds are handled by Lemon Squeezy, our reseller and merchant of record; the refund policy has the details. After a refund the license stops working and Seam goes back to the free features.
Accessibility (to control the mouse and keyboard) and System Audio Recording. To move windows, also Screen Recording. On first launch the app walks you through each one.
No. The Mac app is signed with an Apple Developer ID and notarized by Apple, and the Windows app has an Authenticode signature. If SmartScreen still asks about a brand-new release, choose More info → Run anyway. You can also check each file against SHA256SUMS.txt in the release.
Press the emergency key on Windows: Scroll Lock by default. In Settings you can pick Pause, F12 or Ctrl + Alt + Shift + B if your keyboard has no Scroll Lock.
Both apps check for new releases on GitHub, verify the checksum and signature, and install with one click. You can turn the check off in Settings.
Yes, with Seam Pro (in beta). A Mac window dragged past the edge shows up on the Windows desktop. Windows apps on the Mac need a one-time install of a virtual monitor, with administrator approval.
Free to download, no account and no cloud. Install the app on both computers.
Control your Mac with the PC's keyboard and mouse, and hear the Mac on Windows.
Free
Pro $10 once, 7-day trial included
The PC's keyboard and mouse control the Mac. Clipboard, audio and windows move between the computers.
Free
one file, no installer
