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Remmina vs Remote Desktop Connection Manager: catalog facts
Remmina	Remote Desktop Connection Manager
Free Free and open source, funded by donations.	Free Free download from Microsoft Sysinternals.
Linux	Windows
RDP, VNC, SSH, SPICE, X2Go and HTTP/HTTPS through one saved connection list Packaged in more than fifty distributions, so installing it is usually one command	Groups servers and connects to a whole group at once Live thumbnail view of many sessions
Linux only; there is no official Windows or macOS build Protocol support depends on which plugin packages your distribution ships	Windows and RDP only Closed source
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
No account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 24, 2026

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