RMUX is described as 'Universal Rust multiplexer for the agentic era: detachable, scriptable, and inspectable, with a tmux-compatible CLI, daemon-backed SDK, and native Ratatui integration' and is a terminal emulator in the os & utilities category. There are more than 10 alternatives to RMUX for a variety of platforms, including Linux, Mac, Windows, Rust and Cygwin apps. The best RMUX alternative is tmux, which is both free and Open Source. Other great apps like RMUX are WezTerm, GNU Screen, Waffle Terminal and Zellij.
RMUX alternatives are mainly Terminal Emulators, but if you're looking for
Window Managers or Shells you can filter on that. These are just examples - use the filter bar below to find more specific alternatives to RMUX.