Janet is a functional and imperative programming language
Publisher’s description
What is Janet?
Janet by JanetLang is open-source Windows software in the languages & sdks category. It is written in C.
Installation and requirements
The publisher provides MSI installers for 64-bit Windows. Installation asks for administrator rights. A silent install is possible with the installer’s documented switches. An MSI package is available for deployment with Group Policy, Intune or Configuration Manager.
Updates and version history
The current version is 1.41.2, released on February 18, 2026. The version history goes back to April 24, 2023: 5 releases, all linked to the official files. That is about 1.8 releases a year.
Popularity and file types
The source code on GitHub (janet-lang/janet) has 4,467 stars. Similar programs include Go Programming Language, LLVM and Deno.
Project description on GitHub: “A dynamic language and bytecode vm”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- MSI package for managed deployment
- Documented silent install
Cons
- No native ARM64 build
- Installation needs administrator rights
In short: Janet is an open-source languages & sdk tool for 64-bit PCs. Administrators can deploy it unattended.
Is Janet 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:
9351A150951C7CCDB3495491A377138E71791B6B35B7E4044E6E4DDA8694F9DC· 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
Security practices (OpenSSF Scorecard)
Automated checks of the janet-lang/janet repository on GitHub by the Open Source Security Foundation, last run on October 19, 2026.
- Actively maintained10
- No dangerous workflows10
- No binaries in the repository10
- Fuzzing10
- Licence declared10
- Static code analysis10
- Restricted token permissions9
- Code review6
- Pinned dependencies0
- OpenSSF Best Practices badge0
- Security policy0
- Signed releases0
The score rates how the project is developed and released, not whether the program is safe to install. scorecard.dev
Recent versions
All 5 versions ›5 versions over 3 years · about 1.8 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 1.41.2Latest | February 18, 2026 | — | 64-bit MSI |
| 1.38.0 | March 19, 2025 | — | 64-bit MSI |
| 1.37.1 | December 6, 2024 | — | 64-bit MSI |
| 1.33.0 | January 9, 2024 | — | 64-bit MSI |
| 1.27.0 | April 24, 2023 | — | 64-bit MSI |
Install from the command line
Silent install ›winget install --id JanetLang.Janet -emsiexec /i janet-1.41.2-windows-x64-installer.msi /qn /norestartmsiexec /x {34B35B93-80ED-4D96-9916-3B23E4964538} /qn /norestartRelated guide: How to use winget: install and update apps
Information
- Publisher
- JanetLang
- Category
- Languages & SDKs
- Licence
- MIT
- Price
- Free
- Source code
- github.com/janet-lang/janet
- Written in
- C
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- MSI
- Version
- 1.41.2
- Released
- February 18, 2026
- Added to the catalogue
- April 24, 2023
- Versions listed
- 5
- Updates / year
- 1.8
- GitHub stars
- 4,467
- GitHub forks
- 282
- Website
- github.com
- winget ID
- JanetLang.Janet
- MSI product code
- {34B35B93-80ED-4D96-9916-3B23E4964538}
Ratings and reviews
No reviews yet. Be the first to rate it.
Alternatives to Janet
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Frequently asked questions
Is Janet free?
Yes. Janet is open-source software under the MIT licence.
Is Janet 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 Janet 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 Janet be installed silently?
Yes. The silent install page lists the exact command for each installer, including msiexec for the MSI package.
Does Janet 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 Janet?
The versions page lists all 5 versions with links to their official installer files, back to April 24, 2023.
What are alternatives to Janet?
Go Programming Language, LLVM, Deno, CMake and Yarn. The alternatives page compares them.
