Herdr vs psmux
Herdr
herdr.devpsmux
psmux.pages.devSide by side
| Figure | Herdr | psmux |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | — |
| Linux | Yes | — |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 1 | 0 |
| Spec score · Terminal Multiplexers | 8.1 (#7) | 7.0 (#26) |
| Integrations | Herdr integrations can report agent session identities for resuming sessions after a server restart, and some also report agent state. | The project says libtmux works with psmux and documents integration examples for Python, PowerShell, Node.js, Go, and Rust. |
| Product | Herdr is a background runtime that keeps coding agents’ terminal sessions running so users can return to them from another machine. | psmux is a native Windows terminal multiplexer written in Rust that speaks the tmux command language and uses Windows ConPTY. |
| Support | The maker’s site links to a Discord community and lists [email protected] as a contact email. | The FAQ directs users to the project's guides for troubleshooting and feature details. |
Plans
In their own words
Herdr
Herdr is a background runtime for keeping coding agents’ terminal sessions available when you move between machines. It brings workspaces, tabs, panes, and agents into one terminal interface, with status labels that distinguish working, blocked, and idle agents. Herdr says it detects 22 agent command-line tools out of the box, including Claude Code, Codex, Cursor, OpenCode, Grok, Copilot, and Hermes. Panes and processes continue running when a client detaches, and saved layouts can be restored after a server restart. Integrations can report session identities for resuming after a restart, and some also report agent state. You can add SSH-accessible machines and view their workspaces alongside local ones. The runtime includes a local socket API and CLI for scripts, tools, and agents. It is free under the Apache License 2.0 and runs on macOS, Linux, and Windows. Pane screen history is off by default because terminal output may include sensitive information. Herdr Cloud is described as coming soon.