RemoteViewer lets you view and control another PC over the internet. No complex network setup — you only need the other PC's name and password to connect.
Item
Detail
OS
Windows 10/11, Linux (x64), macOS
Networking
Direct P2P (hole-punching) → automatic relay fallback
Host (shares screen) · Viewer (connects). One app does both.
Key ideaOn the PC that will accept connections, turn on ‘Server Mode’ and set a name & password. On the PC that initiates, pick the target from the list and enter its password.
2. Installation
1
Windows: run RemoteViewer-Setup-0.0.1.exe and follow the wizard. A RemoteViewer icon appears on the desktop / Start menu.
2
Linux: extract RemoteViewer-linux-x64-0.0.1.tar.gz and run ./install.sh.
3
On first launch, accept the EULA. On Windows, click Allow if a firewall prompt appears.
AdministratorTo control UAC dialogs or installers remotely, run the host's RemoteViewer as administrator (Control Panel → Restart as administrator).
3. First run & your PC
First make this PC able to accept connections by setting a name & password. Open the left Settings tab.
Settings tab — this PC's ID/password and unattended options
A
Enter this PC's name in ID of this PC (Local): and a connection password in PW for connection to this PC:. Share these two with whoever will connect.
B
Server Mode must be on so others can reach this PC (on by default). To accept connections to an empty PC, also enable Unattended access (no one is at this PC).
Always set a passwordWithout a password anyone could connect. A wrong password can never connect or control.
4. Connect to another PC
Now connect to another PC. Open the left Connect tab. Online PCs in the same group appear automatically.
Connect tab — ① pick target ② enter password ③ Connect
1
Click the PC to connect in the Select PC: list. The blue (This PC) entry is you and can't be selected.
2
Type the password the other side gave you in Password of the Remote:. The 👁 button reveals what you typed.
3
Press Connect (or Enter) to start. Double-clicking a target also connects immediately.
Connection statusThe dot in the bottom status bar shows state — green: connected, yellow: connecting, grey: idle.
5. Remote control
Once connected, the remote desktop opens in a new window. Use your mouse & keyboard inside it to drive the remote PC.
Remote window — ① host monitor ② blackout ③ quality HUD
Feature
How
Mouse & keyboard
Click & type normally inside the window. Toggle via right-click ‘Remote Mouse Control’.
View size
Right-click → View Size → X1/X2/X4
Host monitor
If the host has multiple monitors, pick which one to view from the menu.
Blackout
Blacks out the host screen while you control it, so bystanders can't watch (toggle from the viewer).
Quality HUD
Shows fps·latency·bandwidth at the menu's right end. Toggle with Ctrl+H.
Record / command
Use Record Remote PC / Run Remote Command in the right-click menu.
6. File transfer & clipboard
The easiest way to move files is drag & drop.
1
Drag a file from your PC onto the remote window to send it to the other PC.
2
To pull files, open the File Transfer tab in the right View Windows panel panel and browse the remote folders.
3
Turn on Clipboard sync (Connect tab → Options) to auto-share copied text between both PCs.
TipIf the right panel is hidden, click the < button at the bottom-right of the Connect tab to expand it.
7. Chat & MultiView
The right View Windows panel panel has three tools.
Tab
Purpose
File Transfer
Browse & download remote folders, push files
Chatting
Real-time text chat with the connected peer
MultiView
See many hosts at once in a grid. Double-click a tile to focus & control that PC.
MultiViewGreat for monitoring several machines at a glance. Control happens one machine at a time.
8. Screen speed & Delta
Tune screen transmission to your network. Left Advanced tab → Display Speed.
Advanced tab — speed slider and the Delta toggle
1
The Quality ◄─► Speed slider: left = sharper but slower, right = lighter & faster.
2
The Delta transport (changed areas only — higher fps) check-box (red circle): when on, only changed regions are sent, raising the frame rate. On some PCs this can micro-stutter audio/video, so leave it off if you prefer stability. Default is OFF.
Delta OFF (default)
Delta ON
Frame rate
Moderate
Higher ↑
Bandwidth
Moderate
Lower ↓
Smoothness
Very smooth
May micro-stutter
9. Security & unattended
Several safeguards guard against unwanted access. Configure them in Help → Session security or the Advanced tab.
Consent prompt — the peer sees nothing until you Allow
Feature
What it does
Connect approval
A prompt asks you to Allow/Deny each incoming connection. Active only when someone is present (attended); if unanswered it waits, like ‘Request Help’.
Lock local input
Locks the host's own keyboard/mouse while it is being controlled (applies when blackout is on).
Auto-lock on end
Locks the host screen automatically when the session ends (unattended only).
Security level
Restricts which connection methods are allowed.
Unattended cautionA PC with ‘Unattended access’ on accepts connections even with nobody present. Always use a strong password and enable it only when needed.
10. License activation
Right after install it runs as a 30-day trial. It never asks for a key on launch and all features work.
1
To register, click the Register button (top-right) or Help → Activate License.
2
Paste your license key and confirm — it switches to the full version and the trial badge disappears.
After the trialCore remote control keeps working, but the extra panels (File transfer · Chat · MultiView via the right < button) require activation.
11. Troubleshooting FAQ
Symptom
Fix
Peer not in the list
Check both sides share the same Group ID: and the peer's Server Mode is on. Use ‘Test connection’ in the Introducer tab to verify server reachability.
‘Wrong password’
Re-check the host's PW for connection to this PC:. It is case-sensitive.
Screen slow or choppy
Move the Advanced slider toward Speed and try turning Delta off.
Connection drops
Auto-reconnect retries for up to 5 minutes. If it keeps failing, check your network (firewall/ports).