UltraVNC (sometimes written uVNC) is an open-source remote-administration/remote-desktop-software utility.
The client supports Microsoft Windows and Linux but the server only supports Windows. It uses the RFB (VNC) protocol to allow a computer to access and control another one remotely over a network connection.
UltraVNC is a commonly used remote-access program, and has been in development since 2002, the most recent stable release being from 2026. The 1.5x development branch had more than 2 million views and downloads.
UltraVNC allows the use of a remote computer as if the user were in front of it. This is achieved by sending mouse movements and key-presses to the remote computer, and replicating the remote computer's display (subject to differences in resolution) locally in real time. UltraVNC bears a strong resemblance to RealVNC Free Edition. However, in addition to remote control, it adds various features, such as an encryption plugin to secure the client/server connection. It also supports file transfers, chat functionality and various authentication methods. The two computers must be able to communicate across a network, such as a local subnet, internal network, or the Internet. The software is free and distributed under the terms of the GNU General Public License version 3.
What is UltraVNC?
UltraVNC by uvnc bvba is open-source Windows software in the remote desktop category. It ranks 2nd by popularity among remote desktop in this catalogue. The first release dates back to 2002. It is written in C, C++, and Java. Its interface is available in 2 languages.
Installation and requirements
The publisher provides EXE (Inno Setup) installers for 64-bit and 32-bit Windows. Installation asks for administrator rights. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 1.8.3.1, released on October 25, 2026. The version history goes back to July 5, 2025: 14 releases, all linked to the official files. That is about 9.5 releases a year. The last update is less than a month old.
Popularity and file types
The Chocolatey package has been downloaded 521,611 times. The source code on GitHub (ultravnc/UltraVNC) has 1,505 stars. Wikipedia has an article about it in 9 of our languages. Similar programs include TeamViewer, TigerVNC and TightVNC.
Project description on GitHub: “👁️ UltraVNC Server, UltraVNC Viewer, UltraVNC Repeater and UltraVNC SC | Official repository: https://github.com/ultravnc/UltraVNC”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Frequent updates (about 9.5 a year)
- Mature project (since 2002)
Cons
- No native ARM64 build
- Installation needs administrator rights
In short: UltraVNC is an open-source remote desktop tool for 64-bit and 32-bit PCs. It is actively maintained. Administrators can deploy it unattended.
Screenshots
Is UltraVNC safe to download?
- The file is served by uvnc.eu; check that it is the publisher’s official mirror
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
A351A06E12A86A85190112CC6B200E9BDAFB2482843C2DE27F48E51F498E9242· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 14 versions ›14 versions over 1 year · about 9.5 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 1.8.3.1Latest | October 25, 2026 | — | 32-bit EXE (Inno Setup)64-bit EXE (Inno Setup) |
| 1.8.3.0 | September 13, 2026 | 6.2 MB | 32-bit EXE (Inno Setup)64-bit EXE (Inno Setup) |
| 1.8.2.4 | June 15, 2026 | 6.3 MB | 32-bit EXE (Inno Setup)64-bit EXE (Inno Setup) |
| 1.8.2.2 | May 17, 2026 | 6.2 MB | 32-bit EXE (Inno Setup)64-bit EXE (Inno Setup) |
| 1.8.2.1 | May 14, 2026 | 6.2 MB | 32-bit EXE (Inno Setup)64-bit EXE (Inno Setup) |
| 1.6.4.0 | June 22, 2025 | 5.8 MB | 64-bit EXE (Inno Setup)32-bit EXE (Inno Setup) |
| 1.6.1.0 | May 7, 2025 | 5.8 MB | 64-bit EXE (Inno Setup)32-bit EXE (Inno Setup) |
| 1.4.3.6 | July 5, 2025 | 5.7 MB | 32-bit EXE (Inno Setup)64-bit EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id uvncbvba.UltraVNC -echoco install ultravnc -yscoop install extras/ultravncUltraVNC_1831_x64_Setup.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Information
- Publisher
- uvnc bvba
- Category
- Remote desktop
- Licence
- GPL-3.0
- Price
- Free
- Source code
- github.com/ultravnc/UltraVNC
- Written in
- C, C++, and Java
- Interface languages
- multiple languages and English
- Requires
- Windows 11 / 10
- Architecture
- 64-bit, 32-bit
- Installer
- EXE (Inno Setup)
- Version
- 1.8.3.1
- Released
- October 25, 2026
- First release
- 2002
- Added to the catalogue
- July 5, 2025
- Versions listed
- 14
- Updates / year
- 9.5
- Chocolatey downloads
- 521,611
- GitHub stars
- 1,505
- GitHub forks
- 300
- Website
- uvnc.com
- winget ID
- uvncbvba.UltraVNC
- Chocolatey package
- ultravnc
- Scoop package
- extras/ultravnc
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is UltraVNC free?
Yes. UltraVNC is open-source software under the GPL-3.0 licence.
Is UltraVNC safe to download?
The download comes from uvnc.eu; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install UltraVNC with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can UltraVNC be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does UltraVNC run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit and 32-bit version through emulation.
Where can I download an older version of UltraVNC?
The versions page lists all 14 versions with links to their official installer files, back to July 5, 2025.
What are alternatives to UltraVNC?
TeamViewer, TigerVNC, TightVNC, Terminals and NETworkManager. The alternatives page compares them.
