Herdr: One terminal to rule them all

Herdr is a next-generation terminal multiplexer designed to run and monitor AI coding agents persistently across any machine, even over SSH.

Your machine

Split panes, create tabs, and keep agents running while your terminal comes and goes.

$ herdr

Run all your coding agents from one terminal, on any box, even over ssh. Each runs in its own real terminal, on a server that keeps it alive when you close the laptop. See blocked, working, and done at a glance, and reattach from your phone.

curl -fsSL https://herdr.dev/install.sh | sh

Stable Linux/macOS · Windows preview beta · no Electron, no account, no telemetry

used in the wild

Individual engineers, not company endorsements.

from the community

Independent walkthroughs from Jilles, DevOps Toolbox, and Better Stack. See how Herdr feels as a tmux-style multiplexer for coding agents, remote sessions, and day-to-day agent orchestration.

why herdr

Agents run wherever the work is: a server, a Mac Mini, a sandbox VM, anywhere you can ssh. You attach from any terminal, even a phone. Desktop agent managers can't leave the machine with the GUI. Herdr can. Why switch from an app →

Split panes, create tabs, and keep agents running while your terminal comes and goes.

$ herdr

SSH in and run Herdr on the remote shell. The session stays after you detach, ideal from a phone SSH client.

$ ssh you@server
$ herdr

A local client to a remote session. Installs Herdr on the host for you, bridges your local clipboard (including image paste), and keeps your keybindings.

$ herdr --remote workbox

responsive tui

Herdr stays usable over SSH from a phone or tablet. The terminal view remains real, while narrow screens get a switcher built for touch-sized decisions.

why different

tmux and Zellij own persistent terminal sessions but don't understand agents. Desktop agent apps understand agents but live on one machine. Herdr keeps the multiplexer in your terminal and makes it agent-aware. See the full comparison →

Ghostty, Kitty, iTerm, Alacritty: your terminal stays.

No web view, no account, no hosted control plane.

Persistence plus clickable panes, agent state, an API.

| Capability | tmux / Zellij | agent apps | worktree orchestrators | Herdr | |---|---|---|---|---| | Runs inside your terminal | ✓ | — | — | ✓ | | Persistent PTY sessions | ✓ | limited | embedded | ✓ | | Remote SSH attach | ✓ | limited | remote projects | ✓ | | Semantic agent state | — | partial | workspace status | ✓ | | Direct agent attach | — | — | — | ✓ | | Agents can orchestrate it | scriptable | partial | workflow-owned | ✓ |

what you get

No rebuilt chat view. Real processes in real PTYs, with clickable layout, persistent sessions, and a control surface your agents can use themselves.

Mouse-first panes, tabs, and workspaces. Keep your shell, fonts, and keybinds.

Blocked, working, done, and idle at a glance across the whole session.

Detach and reattach. Sessions and agents survive the terminal closing.

A CLI and JSON socket API expose workspaces, panes, output, and waits.

# create workspace structure
herdr workspace create --cwd ~/project --label api
herdr tab create --label logs
# split a pane and run work
herdr pane split 1-1 --direction right
herdr pane run 1-2 "just test"
# wait, inspect, and continue
herdr wait agent-status 1-1 --status done
herdr pane read 1-2 --source recent-unwrapped