The best open source alternative to RealVNC is RustDesk. If that doesn't suit you, our users have ranked more than 100 alternatives to RealVNC and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to RealVNC are TightVNC, Remmina, UltraVNC and Bananas Screen Sharing.
Provides secure, cross-platform remote access and file sharing with no registration needed. Offers end-to-end encryption, self-hosting, multi-monitor support, screen sharing, and portable use, all with a lightweight, ad-free interface.
Singapore
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.
Russia
Open source remote desktop client for Linux and BSD supporting RDP, VNC, SPICE, and more, aimed at sysadmins and travelers needing remote access with features like scrollable high-res desktops and organized connection management.
Italy
EU
Secure, free remote desktop access for Windows lets users control computers via LAN or internet, share screens, sync clipboards, transfer files, support IT helpdesks, provide remote demonstrations, and assist users without pre-installation using add-ons.
BelgiumEU
Bananas offers a cross-platform, peer-to-peer screen-sharing service without needing an account or server infrastructure. It uses WebRTC for secure connections, lets users collaborate with multiple cursors, and features a unique connection URL. Privacy is ensured as no data is stored.
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.
DWService is a half (only the client/agent) open source project which offers a service that allows access to remote systems (Windows, Mac, Linux, Raspberry...) using a standard web browser - without any component required on the client side.
EstoniaEU
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.
United States
This is a full computer management web site. With MeshCentral, you can run your own web server to remotely manage and control computers on a local network or anywhere on the internet.
United States
FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Enjoy the freedom of using your software wherever you want, the way you want it, in a world where interoperability can finally liberate your computing experience.
Remotely is a free and open-source remote desktop, remote scripting, and rich auto-complete to maximize your IT support efficiency.
xrdp provides a graphical login to remote machines using Microsoft Remote Desktop Protocol (RDP). xrdp accepts connections from a variety of RDP clients:
