Guide

KVM vs remote desktop: which one for the computer two feet away?

Q: Is remote desktop laggy on a local network?

Less than over the internet, but the capture, encode, send, decode loop is still there for every frame, and tools that broker the session through the vendor's servers add the round trip to those servers even when both computers are in the same room. Text editing feels fine. Dragging windows, drawing, and games show the delay.

Q: Can I use TeamViewer to control a second computer on the same desk?

Yes, and it works. You will see the second computer as a compressed video stream in a window, the session goes through TeamViewer's servers, and the free tier is for non-commercial use only. A KVM gives you the second computer's native output on the monitor instead, with no account and no internet dependency.

Q: Does EasyKVM stream the screen like remote desktop?

No. Each computer is plugged into its own input on the monitor and draws to it directly. EasyKVM switches the monitor's input over DDC/CI and forwards only keystrokes, mouse movement, clipboard, and audio over the LAN. There is no video capture or compression anywhere.

Q: Which is better for gaming on the second computer?

A KVM. The game renders straight to the monitor at native resolution and refresh rate, and input latency is under 50 ms on a typical LAN with EasyKVM. Streaming tools built for games, like Parsec, are good at what they do, but they still encode and decode every frame and cap the picture at what the stream can carry.

You have two computers on one desk and want to use both without a second keyboard. TeamViewer, Parsec, Chrome Remote Desktop, RDP, and Splashtop all come up in the search. They can do it. But they were built to reach a machine in another building, and that shows when the machine is next to you.

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What remote desktop actually does

Every remote desktop tool works the same way at the core. The remote computer captures its screen, encodes it as video, and sends the stream to the computer you are sitting at. Your keystrokes and mouse movements go back the other way. Your monitor never shows the remote computer directly. It shows a video of it, decoded and drawn inside a window on the local machine.

That design is right when the other computer is in another city. It is a compromise when the other computer is plugged into the same monitor.

Latency you can feel

Capturing, encoding, sending, decoding, and drawing a frame takes time, and it happens for every frame. Over the internet the gap between moving the mouse and seeing the cursor move is long enough to notice. Tools built for gaming, like Parsec, do better on a LAN, but the loop is still there. Email is fine, dragging windows shows the delay, and games or drawing make it obvious.

The stream is also compressed. Text stays readable, but gradients band, small fonts soften, and fast motion smears. High refresh rates and HDR are capped by what the codec and the client can decode. A 144 Hz monitor shows the remote machine at whatever frame rate the stream sustains.

Internet, relays, and accounts

Most of these tools broker the session through the vendor's servers. TeamViewer, Splashtop, and Chrome Remote Desktop need an account, and the connection is set up through their cloud even when both computers are in the same room. If your internet is down, the computer next to you may be unreachable. On a slow uplink the stream stalls. RDP is the exception: it runs on the LAN with no account, but the host has to be a Windows Pro or Enterprise edition, and connecting locks the host's own screen while you are in.

What it costs

Personal use is often free. Chrome Remote Desktop is free, Parsec is free for personal use, and TeamViewer has a free tier restricted to non-commercial use. Use one for work and the picture changes: TeamViewer and Splashtop sell commercial licenses as subscriptions billed per year, and Parsec's team plans are subscriptions as well. Over a few years that adds up to far more than a one-time purchase.

When remote desktop is the right choice

The other machine is actually remote. A home PC from the office, a server in a rack. Nothing else does this.
You want both screens visible at once. A remote desktop window next to your local work is something a KVM cannot give you.
The machine has no monitor. Headless boxes need a stream.
Someone else needs to drive. Support sessions and pair work need a viewer, not a switch.

If any of those describe your setup, use remote desktop. The rest of this page is for the other case: two computers, one desk, one monitor.

What a KVM does instead

A KVM switch gives each computer the monitor directly. There is no capture, no encode, no stream. Whichever computer is selected draws to the monitor at native resolution and refresh rate, and your keyboard and mouse go to it. The picture is exactly as good as that computer's graphics output.

Hardware KVMs do this with a box and a cable for every port, and they bring port-matching problems of their own. Those are covered in KVM switch for two computers.

EasyKVM: the KVM without the box

EasyKVM is a software KVM. Each computer plugs into its own input on the monitor. Press Ctrl+Alt+Q and EasyKVM tells the monitor to change input over DDC/CI, the same command the monitor's own buttons send, and forwards your keyboard, mouse, clipboard, and system audio to the other computer over your LAN. Press it again to come back.

LAN-only. Nothing relays through a server. The license check and the update check are the only internet traffic, and no keystrokes or audio ever leave your network. It works with the internet down.
Native picture. Nothing is streamed, so 4K, HDR, and 144 Hz are whatever your monitor and cable support.
Under 50 ms input latency on a typical LAN. Only keystrokes and mouse deltas cross the network, not video. Wi-Fi works; wired is snappier.
No account. Pair once with a 6-digit code. The joining computer needs no license.
$29.99 once for both platforms, updates included. 3-day full trial without a card, 14-day refund.

Remote desktop vs EasyKVM

	EasyKVM	Remote desktop
Picture	Native, each computer drives the monitor	Compressed video stream
Input latency	<50 ms on a LAN	Adds a capture, encode, decode loop to every frame
High refresh rate, HDR	Whatever the monitor supports	Capped by the stream
Works with the internet down	Yes	Usually no (RDP: yes)
Account required	No	Usually yes (RDP: no)
Both screens visible at once	No, one at a time	Yes, in a window
Reaches a computer in another building	No	Yes
Price model	$29.99 once	Free for personal use; per-year for commercial
Designed for	Two computers on one desk	A machine somewhere else

The honest limits

One computer on screen at a time. That is what a KVM is. If you need both visible, see the remote desktop list above.
Your monitor needs DDC/CI. Most monitors made after about 2015 have it; some ignore the input-switch command. The trial tells you. The troubleshooting page lists the fixes.
The monitor flip needs a Windows machine in the pair. A Mac and a PC, or two PCs, swap automatically. Two Macs share keyboard, mouse, clipboard, and audio, and you change the input by hand.
Beta, not code-signed yet. First launch shows an OS warning; the download page explains it.

Coming from Synergy or Mouse Without Borders? Those share a keyboard across two screens by crossing the edge. Why an explicit hotkey is the better switch is covered in hotkey vs mouse-edge switching. Setup steps for a Mac and PC desk are in control a Mac and a PC with one keyboard. If the second computer is a company laptop, see work laptop and personal computer on one monitor.

FAQ

Is remote desktop laggy on a local network?

Less than over the internet, but the capture, encode, send, decode loop is still there for every frame, and tools that broker the session through the vendor's servers add the round trip to those servers even when both computers are in the same room. Text editing feels fine. Dragging windows, drawing, and games show the delay.

Can I use TeamViewer to control a second computer on the same desk?

Yes, and it works. You will see the second computer as a compressed video stream in a window, the session goes through TeamViewer's servers, and the free tier is for non-commercial use only. A KVM gives you the second computer's native output on the monitor instead, with no account and no internet dependency.

Does EasyKVM stream the screen like remote desktop?

No. Each computer is plugged into its own input on the monitor and draws to it directly. EasyKVM switches the monitor's input over DDC/CI and forwards only keystrokes, mouse movement, clipboard, and audio over the LAN. There is no video capture or compression anywhere.

Which is better for gaming on the second computer?

A KVM. The game renders straight to the monitor at native resolution and refresh rate, and input latency is under 50 ms on a typical LAN with EasyKVM. Streaming tools built for games, like Parsec, are good at what they do, but they still encode and decode every frame and cap the picture at what the stream can carry.

Try the direct route

Install EasyKVM on both computers, pair with a 6-digit code, press the hotkey. The 3-day trial has no card and full functionality, and it tells you within minutes whether your monitor accepts the input switch.

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