Clarissa is a CLI terminal assistant powered by AI that helps you with development tasks, system operations, and more. It supports multiple AI providers and features tool execution capabilities for enhanced productivity.
Publisher’s description
What is Clarissa?
Clarissa is an open-source ai assistants & llm program for Windows from Cameron Rye. It is written in Swift.
Installation and requirements
Official installers exist for 64-bit as Portable. It runs without installation (portable).
Updates and version history
The current version is 1.5.0, released on February 8, 2026. 3 versions are listed since December 16, 2025, each with links to its own installer files.
Popularity and file types
The source code on GitHub (cameronrye/clarissa) has 3 stars. Similar programs include Claude Code, Codex CLI and oh-my-pi.
Project description on GitHub: “An AI-powered terminal assistant with tool execution capabilities”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Portable: runs without installation
Cons
- No native ARM64 build
In short: Clarissa is an open-source ai assistants & llm tool for 64-bit PCs.
Is Clarissa 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:
E76B159B35096150B2BC6C0E1253B726A381341AA1D6AB115C3F0F9A6DB283FB· 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 3 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 1.5.0Latest | February 8, 2026 | — | 64-bit Portable |
| 1.4.2 | February 8, 2026 | — | 64-bit Portable |
| 1.4.0 | December 16, 2025 | — | 64-bit Portable |
Install from the command line
Silent install ›winget install --id cameronrye.clarissa -eProgram files (.exe): clarissa.exe
Related guide: How to use winget: install and update apps
Information
- Publisher
- Cameron Rye
- Category
- AI assistants & LLMs
- Licence
- MIT
- Price
- Free
- Source code
- github.com/cameronrye/clarissa
- Written in
- Swift
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- Portable
- Version
- 1.5.0
- Released
- February 8, 2026
- Added to the catalogue
- December 16, 2025
- Versions listed
- 3
- GitHub stars
- 3
- Website
- clarissa.run
- winget ID
- cameronrye.clarissa
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Clarissa free?
Yes. Clarissa is open-source software under the MIT licence.
Is Clarissa 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 Clarissa 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.
Does Clarissa run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Clarissa?
The versions page lists all 3 versions with links to their official installer files, back to December 16, 2025.
Can I use Clarissa without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to Clarissa?
Claude Code, Codex CLI, oh-my-pi, ChatGPT and GPT4All. The alternatives page compares them.
