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.
- Isolated workspaces with central view on git divergence (docs)
- Multi-model (
sonnet-4-*,grok-*,gpt-5-*,opus-4-*) - 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.
Download pre-built binaries from the releases page for macOS and Linux.
 Integrated code-review for faster iteration |
 Agents report their status through the sidebar |
 Git divergence UI keeps you looped in on changes and potential conflicts |
 Mermaid diagrams make it easier to review complex proposals from the Agent |
 Stay looped in on costs and token consumption |
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 Context management dialog keeps compaction controls in one place |
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 Xum server mode has a responsive UI for mobile users |
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See the documentation for more details.
See AGENTS.md for development setup and guidelines.
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.