Helicon is an open-source desktop and web app for Meta's Muse Code CLI. It drives the muse command you already have
over Muse's own session protocol, so Muse stays the agent: your login, your plan, your approvals.
Every project's threads sit in one sidebar and resume in a click, including threads started in the terminal. Edits
arrive as inline diffs, approvals are surfaced rather than batched, and a file viewer beside the thread reads source,
Markdown, images, video and PDFs. It runs Muse natively on Windows, with WSL2 also supported.
Helicon is an unofficial community project and is not affiliated with Meta.
Publisher’s description
What is Helicon?
Helicon is an open-source ai assistants & llm program for Windows from Harjot Singh Rana.
Installation and requirements
Official installers exist for 64-bit as EXE (NSIS). It can be installed for the current user only, without administrator rights. It needs Windows 10 1809 or newer. The installer supports unattended (silent) installation.
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Installs without administrator rights
- Updated in the last two months
Cons
- No native ARM64 build
In short: Helicon is an open-source ai assistants & llm tool for 64-bit PCs. Administrators can deploy it unattended.
Is Helicon safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
2F9958AB3CAFC3EA5CEC2CA41A7D780199DF41411BD917EABC3FBDA6D06CC0A4· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 0.21.1Latest | November 13, 2026 | — | 64-bit EXE (NSIS) |
Install from the command line
Silent install ›winget install --id HarjjotSinghh.Helicon -eHelicon_0.21.1_x64-setup.exe /SRelated guide: How to use winget: install and update apps
Information
- Publisher
- Harjot Singh Rana
- Category
- AI assistants & LLMs
- Licence
- MIT
- Price
- Free
- Requires
- Windows 11 / 10 (Windows 10 1809+)
- Architecture
- 64-bit
- Installer
- EXE (NSIS)
- Version
- 0.21.1
- Released
- November 13, 2026
- Added to the catalogue
- November 13, 2026
- Versions listed
- 1
- Website
- helicon.sh
- winget ID
- HarjjotSinghh.Helicon
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Helicon free?
Yes. Helicon is open-source software under the MIT licence.
Is Helicon safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Helicon with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Helicon be installed silently?
Yes. The silent install page lists the exact command for each installer.
Which Windows versions does Helicon support?
The installer requires Windows 10 1809 or newer and is available for 64-bit.
Does Helicon run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Can I use Helicon without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.
What are alternatives to Helicon?
Codex CLI, Claude Code, ChatGPT by lencx, Jan and T3 Code. The alternatives page compares them.
