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Remote Desktop Connection Manager vs Remmina: catalog facts
Remote Desktop Connection Manager	Remmina
Free Free download from Microsoft Sysinternals.	Free Free and open source, funded by donations.
Windows	Linux
Groups servers and connects to a whole group at once Live thumbnail view of many sessions	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
Windows and RDP only Closed source	Linux only; there is no official Windows or macOS build Protocol support depends on which plugin packages your distribution ships
Downloadable app	Downloadable app
Closed 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 24, 2026	Official website Full listing and sources Checked September 20, 2026

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