Apps similar to Rune Multiplexer include tmux, which is free and open source. Other options are Herdr, WezTerm, GNU Screen and RMUX. You're spoiled for choice with Terminal Emulators like Rune Multiplexer: we list more than 25 alternatives for Linux, Mac, Windows, the web and iPhone.
tmux is a terminal multiplexer: it enables a number of terminals (or windows), each running a separate program, to be created, accessed, and controlled from a single screen. tmux may be detached from a screen and continue running in the background, then later reattached.
Handle multiple coding agents in real terminals with instant status tracking, persistent sessions that survive disconnects, SSH/mobile reattachment, keyboard and mouse controls, plugin support, and lightweight operation as a Rust binary for enhanced workflows.
Türkiye
A GPU-accelerated cross-platform terminal emulator and multiplexer written by @wez and implemented in Rust
United States
Offers full-screen terminal multiplexing with independent windows, VT100 emulation, scrollback, and copy-paste. Supports ANSI standards, detaching, and persistent background process execution for shells or commands across Unix-like systems.
United States
Universal Rust multiplexer for the agentic era: detachable, scriptable, and inspectable, with a tmux-compatible CLI, daemon-backed SDK, and native Ratatui integration.
Zellij is a workspace aimed at developers, ops-oriented people and anyone who loves the terminal. Similar programs are sometimes called "Terminal Multiplexers".
Austria
EU
Automatically tiles and organizes all terminal sessions in one native macOS window, scaling layouts from fullscreen to grid, grouping sessions by project with color-coding, enabling instant filtering, supporting any CLI tool, and requiring zero configuration.
Australia
Byobu is a GPLv3 open source text-based window manager and terminal multiplexer. It was originally designed to provide elegant enhancements to the otherwise functional, plain, practical GNU Screen , for the Ubuntu server distribution.
United States
Workspace for coding-agent CLIs: per-session status detection, prompt queues, git worktree parallelism, supervisor-owned persistent terminals, deterministic capture of file writes and commands, and a mobile client.
United States
A native Mac terminal that keeps projects, sessions, and attention organized. Saggar tracks what is working, waiting, finished, and failed, then brings the sessions that need you to the front.
United Kingdom
itmux is a packaging of Tmux, Mintty, OpenSSH client and Cygwin to offer a standalone ssh-enabled terminal multiplexer for Windows systems.
Open-source infrastructure for running persistent AI coding agents across local and remote machines.
Bosnia & Herzegovina
