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TightVNC vs Radmin: catalog facts
TightVNC	Radmin
Free Free and open source under the GPL. A commercial licence is sold for redistribution.	Paid Licences are bought through the Radmin online store.
Windows, Linux	Windows
Very light on resources, with a Java viewer that runs from any browser host Simple, dependable remote control on a local network	Fast and usable over low-bandwidth connections AES-256 encryption of all session data
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	Windows only Aimed at organisations rather than home users
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
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 24, 2026

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