Xum - Coding Agent Multiplexer

[!IMPORTANT] This project was renamed from Mux to Xum after Mux.com raised a trademark concern. “Mux” is a common technical abbreviation of “multiplexer” and we do not expect confusion between the projects, but chose to rename ours rather than spend more time on the dispute.

Features

• Isolated workspaces with central view on git divergence (docs)
  • Local: run directly in your project directory
  • Worktree: git worktrees on your local machine
  • SSH: remote execution on a server over SSH
• Multi-model (sonnet-4-*, grok-*, gpt-5-*, opus-4-*)
  • Ollama supported for local LLMs (docs)
  • OpenRouter supported for long-tail of LLMs (docs)
• VS Code Extension: Jump into Xum workspaces directly from VS Code (docs)
• Supporting UI and keybinds for efficiently managing a suite of agents
• Rich markdown outputs (mermaid diagrams, LaTeX, etc.)

Xum has a custom agent loop but much of the core UX is inspired by Claude Code. You'll find familiar features like Plan/Exec mode, vim inputs, /compact and new ones like opportunistic compaction and mode prompts.

Read the full documentation →

Install

Download pre-built binaries from the releases page for macOS and Linux.

More on installation →

Screenshots

More reading

See the documentation for more details.

Development

See AGENTS.md for development setup and guidelines.

License

Copyright (C) 2026 Coder Technologies, Inc.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, version 3 of the License.

See LICENSE for details.