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RustConn vs Ásbrú Connection Manager: catalog facts
RustConn	Ásbrú Connection Manager
Free Free and open source under the GPL 3.0 or later.	Free Free and open source, supported by donations.
macOS, Linux, Command line	Linux
Many protocols in one app, from SSH and RDP to serial and Kubernetes Embedded Rust clients rather than external helpers	Organizes many SSH and Telnet connections in one place Tabbed sessions
Windows support only through WSLg Young project with a small community	Linux only Community-maintained with a small team
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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