macOS · Windows · Linux · your network only
EasySwitch links the computers on your desk into one workspace. Control them with one keyboard and mouse, move your clipboard and files between them, and turn another computer into a real second display.
Free forever for 2 computers · Pro $49 once · No subscription
One cursor, one clipboard, three machines — and the third one is a display now. No cloud, no internet needed — and never a mirror of your desktop.
New in 0.1.0 (b118) · Extend Pro
Pick a linked computer, choose Extend, and your machine gains a real second display — one your operating system treats like any other monitor.
Drag a window onto it. Work there. Take it back whenever you want.
60 fps
at the other screen's native resolution
No screen capture
the display is created empty — your desktop is never read
Hardware encoded
on the platforms whose OS provides an encoder
LAN only
encrypted straight between your machines, no server in between
Comes back on its own
after sleep, a reboot or a network blip
Can create a display
Can show one
Extend is part of Pro — a one-time purchase that also covers the keyboard, clipboard and files.
Not screen sharing
Every other way of putting one computer's picture on another starts by reading the screen you already have. Extend starts by making a screen you didn't.
The usual way
Whatever is on your screen leaves the machine.
EasySwitch
Your screen is never captured.
One desk
Slide the cursor off the edge of one screen and onto the next computer. The keyboard follows it.
Copy on one machine. Paste on another. Text, images and files.
Drag a file off one screen and drop it into Finder or Explorer on the other.
Turn a linked computer into a real extra display for the one you're working on.
Sound familiar
It just doesn't act like one computer.
Keep the one you like. Your cursor slides off the edge of its screen onto the next machine and the keyboard goes with it — the same way it already moves between two monitors.
Copy here, paste there. Or drag the file across the screen edge and drop it straight into Finder or Explorer. It works between a Mac and a PC, where AirDrop won't.
Point EasySwitch at it, press Extend, and the machine you're working on gains a screen. Put the things you keep glancing at over there and take the space back on your main display.
Everything else
Laptop, desktop, test box: crossings hand off machine to machine like one long desk, and the clipboard works between any pair of them.
Ctrl+Alt+2
Jump straight to a machine instead of dragging the cursor across three screens — the number is its position in your layout. Double-tap Ctrl to snap control back to the computer you're sitting at, even if the network stalls.
Ctrl+Alt+L
Pin the keyboard and mouse to the machine you're on so a stray cursor can't wander mid-sentence. Same chord to release it.
Ctrl+Alt+M
Turn the machine you're pointing at into an extra monitor, and turn it back into a computer when you're done. Part of Pro.
Sleep, a dropped Wi-Fi connection, a reboot — the machines find each other again and carry on, including a display you were extending onto.
Scan a QR code and send text or files from any phone or browser on your network. Nothing to install on the phone. Part of Pro.
How it works
A small native app on each machine — quick to start, light on memory, input latency in the low milliseconds on a LAN.
01
They find each other on your local network automatically — no IP addresses, no config files, no relay account.
02
Confirm the same fingerprint on both machines, then arrange them in Settings the way they sit on your desk — like a multi-monitor layout.
03
That's it. When you want a display instead of a cursor, pick the machine and hit Extend.
When you want a display instead of a cursor, hit Extend. Read the setup guide
Private by design
EasySwitch is not remote desktop and never mirrors a desktop. Extend doesn't capture the screen you're using — it creates a brand-new, empty display and streams only that, only while you have it switched on, encrypted, over your own network. Leave Extend off and nothing but input, clipboard and your files ever moves.
Everything is end-to-end encrypted between your machines, on every tier — encryption is never a paid feature. Licenses verify on your machine: the app talks to our server exactly once, when you add a key, and works forever after that with the internet unplugged. No account in the app, no telemetry, no cloud in the path.
Read the privacy policyWhat crosses the wire
Platform support
Mac to Windows, Windows to Linux, two Macs, three of anything — the mix is yours. One limitation is worth knowing up front, and it's below.
macOS
13 and later · Apple silicon and Intel
Signed and notarized. Accessibility and Input Monitoring are granted once; extending adds Screen Recording and Local Network.
Windows
10 and 11 · x64
Creating a display installs one consented display driver, the first time you use the feature — never at install.
Linux · Wayland
GNOME 45+ / KDE Plasma 6.1+
File copy uses FUSE-backed virtual files, which ships on most desktop distributions.
Linux · X11
Any Xorg session
An X11 machine makes a perfectly good second screen for a Mac or a PC — it just can't be the machine that gains one.
How it compares
Some tools move your keyboard. Others move your screen. EasySwitch brings both together.
| Capability | EasySwitch | Synergy | Deskflow | Duet Display | spacedesk |
|---|---|---|---|---|---|
| Windows, macOS & Linux | Yes all three | Yes all three | Yes all three | Yes plus tablets | Partial Windows host only |
| Use another computer as a second monitor | Yes Pro | No | No | Yes | Yes |
| Same-OS pairs (two PCs, two Macs) | Yes | Yes | Yes | Yes | Partial Windows host |
| Works with any keyboard & mouse | Yes | Yes | Yes | Yes | Yes |
| End-to-end encrypted — free tier too | Yes Noise, every tier | Partial paid versions | Partial optional TLS | No not published | No not published |
| Clipboard: text, images & files | Yes | Partial text | Partial text only | No | No |
| File transfer & drag-and-drop | Yes up to 10 MB free, unlimited on Pro | Partial newer versions | No | No | No |
| Control from a phone or browser | Yes web bridge | No | No | No | No |
| Free tier | Yes 2 computers | No trial only | Yes open source | No trial only | Yes non-commercial |
| One-time price (no subscription) | Yes | Partial tiers vary | Yes free | No subscription | Partial commercial by quote |
Competitor features as published 2026-08-04 — verify current terms on their official sites. Deskflow is excellent open source and spacedesk is genuinely free on Windows; if either covers your desk, use it happily. Full matrices: KVM software · second-screen software.
Pricing
Two computers are free forever. Everything else is a single purchase that never renews.
Free
$0
forever, for 2 computers
Two computers, forever free. No key, no account needed.
Pro
$49
once. No subscription, ever.
One desk, fully linked — up to 5 computers, screens included.
14-day money-back guarantee · secure checkout by Paddle · key delivered instantly and activated offline after that
Need more than five computers? Business covers 25. Students and open-source maintainers get Pro free — ask us.
Switching from another tool
Every one of these is a real product people chose for a reason. Here's what EasySwitch adds when you move.
Coming from Synergy
Free for two computers — Synergy is a paid product with only a trial.
Read the comparisonComing from Barrier / Input Leap
Move files, images and drag-and-drop between machines — Barrier does text clipboard only.
Read the comparisonComing from Deskflow
Move images, files and whole folders — Deskflow shares text clipboard only.
Read the comparisonComing from Mouse Without Borders
Mix in Macs and Linux machines — Mouse Without Borders is Windows-only.
Read the comparisonComing from Duet Display
Buy once instead of renewing every year — a $24.99/year plan is $125 over five years.
Read the comparisonComing from spacedesk
Extend from a Mac or a Linux machine, not only from Windows.
Read the comparisonQuestions
Yes — mouse, keyboard and clipboard (text, images and files up to 10 MB) across two computers are free forever, including drag-and-drop. Pro lifts the transfer limit to any size, links 5 computers and adds the web bridge and virtual displays — a one-time purchase, never a subscription.
Yes. Pick a linked computer, choose Extend, and your machine gains a real extra display that happens to live on the other screen — drag windows onto it, work there, and take it back with a keystroke. It is not a mirror of your desktop: EasySwitch creates a brand-new display for the purpose.
EasySwitch is not remote desktop and never mirrors a desktop. Extend doesn't capture the screen you're using — it creates a brand-new, empty display and streams only that, only while you have it switched on, encrypted, over your own network. Leave Extend off and nothing but input, clipboard and your files ever moves.
Both. Any combination works — Mac to Windows, two Windows PCs, two Macs, Linux to anything — with automatic Cmd ⇄ Ctrl shortcut translation, so copy/paste muscle memory works on every machine. There's no cross-platform requirement.
No. Everything runs over your own local network. A license is activated online once; after that the app works forever with the internet unplugged.
Nothing, until you paste. Copying a large file or folder puts a promise on the clipboard rather than pushing bytes across the network — the transfer starts at the moment you paste or drop it on the other machine, and you see it happen.
No hardware, no cables, no switch button. The cursor crosses screen edges like a multi-monitor setup (or jump with Ctrl+Alt+1–5), and the clipboard, your files and — on Pro — an extra display travel with you, which no cable can do.
On macOS and Linux, nothing beyond the app. On Windows 11, creating a display installs one consented display driver the first time you use the feature — never at install time, and the app tells you before it happens.
More in the full FAQ and the documentation.
Free forever for 2 machines — mouse, keyboard, clipboard, files and full encryption. No account, no card, no subscription.
EasySwitch