Open Source UltraVNC Alternatives

The best open source alternative to UltraVNC is RustDesk. If that doesn't suit you, our users have ranked more than 50 alternatives to UltraVNC and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to UltraVNC are Remmina, TightVNC, TigerVNC and Apache Guacamole.

UltraVNC alternatives are mainly Remote Desktop Tools but may also be Web Conferencing Tools or Video Calling Apps. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of UltraVNC.

UltraVNC alternatives page was last updated

UltraVNC

269

Free • Open Source
Remote Desktop Tool
Windows

UltraVNC is easy to use and free software that can display the screen of another computer (via the Internet or a local...

Learn more about UltraVNC

RustDesk
Is this is a good alternative?
Yes
No
Free • Open Source
Remote Desktop Tool
Mac
Windows
Linux
Android
iPhone
Android Tablet
iPad
Self-Hosted
F-Droid
114 RustDesk alternatives
The open source alternative to TeamViewer and AnyDesk. Display and control your PC and Android devices from anywhere at anytime. Works out of the box, no configuration required. You have full control of your data, with no concerns about security.
- - RustDesk is the most popular Windows, Android, Mac & iPhone alternative to UltraVNC.
- - RustDesk is the most popular Open Source & free alternative to UltraVNC.
Suggest and vote on features
RustDesk Features
1. Unattended AccessRustDesk can access a computer even when no one’s being physically present at the remote end.
2. No registration requiredYou can use most of the features in RustDesk without registration.
3. End-to-End EncryptionRustDesk has E2E Encryption, for entire or parts of the app.
4. Screen SharingYou can use RustDesk to share your screen with your colleages or friends.
5. LightweightRustDesk consumes less device resources compared to similar apps.
6. Desktop SharingRustDesk enables you to share your screen with other people in the same office or working remotely.
7. Ad-freeRustDesk doesn't contain any form of external advertising.
8. PortableRustDesk can be used from a USB stick or similar with no prior installation.
9. Privacy focusedRustDesk is considered a privacy friendly alternative.
Low Latency
Stream audio
FOSS
Support for Multiple Monitors
Real time collaboration
Dark Mode
Remmina
Is this is a good alternative?
Yes
No
Free • Open Source
Remote Desktop Tool
Linux
BSD
132 Remmina alternatives
Remmina is a remote desktop client written in GTK+. Remmina primarily targets system administrators and travelers that need to work with computers remotely in front of either large monitors or tiny netbooks.
Suggest and vote on features
Remmina Features
1. User Session RecordingRemmina can record user sessions to gain a real understanding of how users interact with a website.
RDP
SSH
Fullscreen support
RDP Functionality
Support for Multiple protocols
Tabbed interface
VNC Support
Scalable
Native translations
HTTP Web seeding
Opinions about Remmina as a Alternative to UltraVNC
Most users think Remmina is a great UltraVNC alternative.
TightVNC
Is this is a good alternative?
Yes
No
Free Personal • Open Source
Remote Desktop Tool
Windows
102 TightVNC alternatives
TightVNC is a free remote desktop application. With TightVNC, you can see the desktop of a remote machine and control it with your local mouse and keyboard, just like you would do it sitting in the front of that computer.
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TightVNC Features
1. LightweightTightVNC consumes less device resources compared to similar apps.
2. No registration requiredYou can use most of the features in TightVNC without registration.
3. Works OfflineTightVNC can be used without the need to connect to the internet.
4. PortableTightVNC can be used from a USB stick or similar with no prior installation.
5. Screen SharingYou can use TightVNC to share your screen with your colleages or friends.
6. Desktop SharingTightVNC enables you to share your screen with other people in the same office or working remotely.
7. Two-factor AuthenticationTightVNC supports two-factor authentication (2FA).
VNC Viewer
Local Network Connection
VNC Support
Integrated File Sharing
Comments about TightVNC as a Alternative to UltraVNC
Most users think TightVNC is a great UltraVNC alternative.
Mahdy Abdelmotaleb
Using as server: After connecting, don't have to wait on black screen for 5 seconds until remote screen appears. Very responsive.
Positive comment•
0
TigerVNC
Is this is a good alternative?
Yes
No
Free • Open Source
Remote Desktop Tool
Mac
Windows
Linux
BSD
75 TigerVNC alternatives
TigerVNC is an advanced VNC implementation. It is based on the fourth generation of VNC. TigerVNC also includes features from the TightVNC and TurboVNC projects. This includes accelerated JPEG compression. TigerVNC supports the latest X.Org X server.
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TigerVNC Features
Raspberry Pi Development
Integrated File Sharing
VNC Support
VNC Viewer
VNC Server
Apache Guacamole
Is this is a good alternative?
Yes
No
Free • Open Source
Remote Desktop Tool
Linux
Self-Hosted
Cloudron
61 Apache Guacamole alternatives
Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC and RDP. We call it clientless because no plugins or client software are required.
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Apache Guacamole Features
Browser-based
Role-based security access
Clientless Remote Connection
User Management
Dockerized
Web-Based
VNC Viewer
VNC Support
RDP
Remotely
Is this is a good alternative?
Yes
No
Free • Open Source
Remote Desktop Tool
Windows
Linux
Self-Hosted
116 Remotely alternatives
Remotely is a free and open-source remote desktop, remote scripting, and rich auto-complete to maximize your IT support efficiency.
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Remotely Features
1. Unattended AccessRemotely can access a computer even when no one’s being physically present at the remote end.
Remote Support
Runs in browser
Low Latency
Comments about Remotely as a Alternative to UltraVNC
pros, cons and recent comments
Guest
On-Premise currently only supports Windows & Ubuntu variant distributions but source-code is readily available.

Includes convenient ~200mb client installer & branding customization features.

Project is on hiatus as of about a month ago (Aug 23, 2021) due to change in dev personal living arrangements.

Heavily recommend supporting this one and all his endeavors, this sort of thing only comes around once in a blue moon!
Positive comment•
0
Xrdp
Is this is a good alternative?
Yes
No
Free • Open Source
Remote Desktop Tool
Linux
86 Xrdp alternatives
xrdp provides a graphical login to remote machines using Microsoft Remote Desktop Protocol (RDP). xrdp accepts connections from a variety of RDP clients:
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Xrdp Features
RDP
Add a screenshot
screego
Is this is a good alternative?
Yes
No
Free • Open Source
Windows
Linux
Online
Raspberry Pi
Docker
22 screego alternatives
For developers, screen sharing shouldn’t be optimized for low bandwidth or presenting some slides. It should be high definition, that you still can read the tiny font of your colleague. No more, “wait a minute, the stream isn’t updating”.
Suggest and vote on features
screego Features
1. Screen SharingYou can use screego to share your screen with your colleages or friends.
Web-Based
Low Latency
WebRTC
Add a screenshot
Aspia
Is this is a good alternative?
Yes
No
Free • Open Source
Remote Desktop Tool
Windows
118 Aspia alternatives
Aspia is a free and open source application for remote computer management.
Suggest and vote on features
Aspia Features
1. Desktop SharingAspia enables you to share your screen with other people in the same office or working remotely.
2. Ad-freeAspia doesn't contain any form of external advertising.
3. Screen SharingYou can use Aspia to share your screen with your colleages or friends.
4. Unattended AccessAspia can access a computer even when no one’s being physically present at the remote end.
5. Support for Multiple MonitorsAspia supports the use of multiple displays.
Peer-To-Peer
HopToDesk
Is this is a good alternative?
Yes
No
Free • Open Source
Remote Desktop Tool
Mac
Windows
Linux
Online
Android
iPhone
Chrome OS
Manjaro Linux
Fedora
Debian
18 HopToDesk alternatives
HopToDesk is a Remote Desktop Software that focuses on privacy and security. Allowing users to connect and control any device from anywhere. HopToDesk with its frictionless application is perfect for enterprises with work-from-home employees or the personal user who wants to...
Suggest and vote on features
HopToDesk Features
1. LightweightHopToDesk consumes less device resources compared to similar apps.
2. Unattended AccessHopToDesk can access a computer even when no one’s being physically present at the remote end.
3. Ad-freeHopToDesk doesn't contain any form of external advertising.
4. No registration requiredYou can use most of the features in HopToDesk without registration.
5. Screen SharingYou can use HopToDesk to share your screen with your colleages or friends.
6. Desktop SharingHopToDesk enables you to share your screen with other people in the same office or working remotely.
7. End-to-End EncryptionHopToDesk has E2E Encryption, for entire or parts of the app.
8. Real time collaborationMultiple users can work together in HopToDesk simultaneously.
9. Two-factor AuthenticationHopToDesk supports two-factor authentication (2FA).
Remote File Access
No installation required
Remote Work
Dayon!
Is this is a good alternative?
Yes
No
Free • Open Source
Remote Desktop Tool
Mac
Windows
Linux
52 Dayon! alternatives
Dayon! is a user friendly, open-source, cross-platform solution, that allows controlling of remote computers. It can be used as free alternative to various commercial remote desktop and remote assistance products.
Suggest and vote on features
Dayon! Features
1. Desktop SharingDayon! enables you to share your screen with other people in the same office or working remotely.
2. Screen SharingYou can use Dayon! to share your screen with your colleages or friends.
Remote Support
Share Clipboard
Low Latency
Jitsi Meet Electron
Is this is a good alternative?
Yes
No
Free • Open Source
Remote Desktop Tool
Video Calling App
Mac
Windows
Linux
17 Jitsi Meet Electron alternatives
Desktop application for Jitsi Meet built with Electron. Features remote control, always-On-Top window and works with any Jitsi Meet deployment.
Suggest and vote on features
Jitsi Meet Electron Features
1. VoiP CallsJitsi Meet Electron allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
2. Screen SharingYou can use Jitsi Meet Electron to share your screen with your colleages or friends.
Floating windows