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Herdr vs cmux: catalog facts
Herdr	cmux
Free Open source under the Apache 2.0 licence.	Free Free and open source under the GPL.
Windows, macOS, Linux, Command line	macOS, iOS, Command line
Agent sessions survive disconnects and can be reattached from any machine Shows the status of many agents across projects in one place	Notification rings show which agent needs attention Vertical tabs with git branch, ports and directory
Windows support is still in beta Only useful if you already run terminal-based coding agents	macOS only on the desktop Focused on agent workflows, which may be more than a plain terminal user needs
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: GPL
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 October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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