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Emdash

Open-source desktop app for running several CLI coding agents in parallel, each in its own Git worktree.

Open sourceAI coding assistants
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About Emdash

Emdash is a desktop workspace for developers who use command-line coding agents such as Claude Code, Codex, Amp, OpenCode or Cursor's agent. Instead of juggling terminal tabs, you create tasks; each task gets its own Git worktree, branch and agent, so several agents can work on the same repository at once without stepping on each other. When an agent finishes, you review the diff, commit, push and open a pull request from inside the app, and you can watch GitHub Actions checks there too. Other parts include an in-app browser for previewing a dev server, scheduled agent runs, issue import from Linear, Jira, GitHub and others, remote projects over SSH, and a shared library of prompts, skills and MCP servers. Emdash doesn't include a model of its own: you bring the agent CLIs and their accounts or API keys. The app is free and open source under Apache 2.0, runs on macOS, Windows and Linux, and is backed by Y Combinator.

Best for: Developers who run several CLI coding agents at once and want one place to manage and review them.

Pros and cons

What works

  • Works with dozens of agent CLIs, so you aren't tied to one provider
  • Each task runs in an isolated Git worktree, so parallel agents don't clash
  • Diff review, PR creation and CI checks built into the same window
  • Free and open source under Apache 2.0

Why people leave

  • No model of its own; you still need agent CLIs and their subscriptions or keys
  • Assumes comfort with Git branches and worktrees
  • Young project that changes quickly, with a separate cloud 2.0 still on a waitlist

Top Emdash alternatives

See all 5
  1. 1Claude Code logo
    Claude Code

    Use one agent directly in the terminal if you don't need a separate app to run several at once.

    83.8
  2. 2OpenAI Codex logo
    OpenAI Codex

    OpenAI's agent has its own app and cloud tasks that can run work in parallel without a third-party shell.

    74.3
  3. 3OpenCode logo
    OpenCode

    An open-source terminal agent that works with many model providers, for a lighter single-agent setup.

    59.4
  4. 4Cursor logo
    Cursor

    A full AI code editor with background agents built in, for people who want editing and agents in one tool.

    59.1
  5. 5goose logo
    goose

    An open-source agent with its own desktop app, if you'd rather run one extensible agent than orchestrate many.

    57.5

Why people left Emdash

In reviewers' own words, from reviews of the apps they moved to. These are their opinions, not ours.

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Emdash: common questions

Is Emdash free?

Yes. Emdash is free, open-source software.

Is Emdash open source?

Yes. The source code is on GitHub at generalaction/emdash.

What platforms does Emdash run on?

Emdash is available for macOS, Windows and Linux.

What are the best alternatives to Emdash?

The highest-ranked Emdash alternatives right now are Claude Code, OpenAI Codex and OpenCode. See the full ranked list for pricing, platforms and verified facts.

See all 5 Emdash alternatives