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TightVNC vs KasmVNC: catalog facts
TightVNC	KasmVNC
Free Free and open source under the GPL. A commercial licence is sold for redistribution.	Free The open-source software is available without a license fee. Hosting, hardware and…
Windows, Linux	Linux, Self-hosted, Web
Very light on resources, with a Java viewer that runs from any browser host Simple, dependable remote control on a local network	Provides remote desktop access without a separate viewer application.
No relay service; you must reach the machine yourself over the network VNC authentication is weak and needs to be tunnelled over SSH or a VPN	It does not support traditional VNC viewer clients.
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License: GPL-2.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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