Helicon icon
Helicon icon

Helicon

 6 likes

Open-source desktop app for Meta's Muse Code CLI: every project's threads, inline diffs and approvals in one window.

A thread in Helicon: projects in the sidebar, the agent's work summary, and the reply with what it cost

Cost / License

  • Free
  • Open Source (MIT)

Application type

Since

  • New

Updated

  • Updated Oct 2026

Releases

  • 54 releases last year54 last year

Platforms

  • Mac  Universal build for Apple Silicon and Intel. Not notarized yet, so the first launch needs right-click, then Open.
  • Windows  Signed installer with auto-update. Needs the Muse Code CLI, which now runs natively on Windows; Muse Code inside WSL2 also works.
  • Linux  x86_64 AppImage. Needs libfuse2 on some distributions.
  • Self-Hosted  Run the daemon on any machine with Node 22+ and reach it from a browser with a token. Cross-origin access needs TLS in front of it.
What each thread would have cost at published API rates, by day and model
Settings: theme, code colours, approvals and updates
+1
Command palette: reach any thread or action from the keyboard
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  • HarjjotSinghh updated Helicon
  • tylerlikesps4 liked Helicon
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    Grego-Avaux added Helicon as alternative to Memdoor
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  • DylanMerigaud commented on Helicon

    Adding this to my list to try later.

  • DylanMerigaud liked Helicon
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Development

GitHub repository

  •  109 Stars
  •  21 Forks
  •  49 Open Issues
  •   Updated  
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Our users have written 1 comment or review about Helicon, and it has gotten 6 likes

Helicon was added to AlternativeTo by HarjjotSinghh on and this page was last updated .

Comments and Reviews

   
DylanMerigaud
0

Adding this to my list to try later.

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What is Helicon?

Helicon is a free, open-source desktop and web app for Meta's Muse Code CLI. It drives the muse command already installed on your machine over Muse Code's own session protocol, so Muse Code stays the agent: your login, your subscription, your approvals. There is no API key and no second bill.

Threads from every project sit in one sidebar and resume in a click, including ones started in the terminal. Edits arrive as inline diffs where they happened, approvals are surfaced one by one rather than batched, and a file viewer beside the thread reads source with syntax highlighting, previews and edits Markdown, and opens images, video and PDFs. A usage page prices each thread at published API rates so you can see what your subscription actually did.

Runs Muse Code natively on Windows, macOS and Linux. The same interface also runs in a browser against a daemon on another machine. MIT licensed.

Helicon also ships as a VS Code extension on the VS Code Marketplace and Open VSX, so it works in Cursor and Windsurf. SSH hosts can be added as projects. The web version connects to a daemon you run; there is no hosted service.

Helicon is an unofficial community project, not made or endorsed by Meta, and unrelated to the Muse assistant app for Mac.