Herdr is a terminal-based agent multiplexer designed for managing coding agents and terminal processes in one persistent workspace.
It provides tmux-like panes, tabs, and workspaces, while adding agent-aware status tracking so users can see which agents are blocked, working, done, or idle without leaving their terminal.
This is free and open source software.
Key Features
- Organizes terminal sessions into workspaces, tabs, and panes.
- Shows agent states including blocked, working, done, and idle.
- Supports detach and reattach, with pane processes continuing to run in the background.
- Works over SSH for remote sessions and server-based workflows.
- Includes mouse-native pane interaction, copy mode, notifications, themes, and socket API support.
Website: github.com/herdrdev/herdr
Support:
Developer: Can Celik
License: GNU Affero General Public License v3.0

Herdr is written in Rust. Learn Rust with our recommended free books and free tutorials.
Related Software
| Terminal Multiplexers | |
|---|---|
| Zellij | Terminal workspace with batteries included |
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| Tmuxinator | Create and manage complex tmux sessions easily |
| herdr | Terminal-based agent multiplexer |
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| vtm | Terminal multiplexer with window manager and session sharing |
| Screen | Terminal multiplexer with VT100/ANSI terminal emulation |
| TUIOS | vim-like modal interface with comprehensive keyboard shortcuts |
| tmate | Fork of tmux |
| 3mux | Terminal multiplexer inspired by i3 |
| mtm | Micro terminal multiplexer |
| TERM39 | Modern terminal multiplexer with classic MS-DOS aesthetic |
| tab | Intuitive, config-driven terminal multiplexer |
| dvtm | Dynamic virtual terminal manager |
Read our verdict in the software roundup.
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