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X2Go vs TigerVNC: catalog facts
X2Go	TigerVNC
Free Free and open source, with optional professional support from third parties.	Free Free and open source, with no paid edition.
Windows, macOS, Linux	Windows, macOS, Linux
Clients for Windows, macOS and Linux Can publish single applications as well as full desktops	Performance aimed at 3D and video workloads, not just a remote text editor TLS encryption and extended authentication on top of the plain VNC protocol
Server side runs on Linux only Some linked Windows client builds date from 2020	VNC has no built-in file transfer, audio or printing; it is a screen and input protocol Security depends on configuring TLS and authentication correctly, which is on you
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-2.0
No account needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.