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is-wsl

v3.1.1LOW Risk

Check if the process is running inside Windows Subsystem for Linux (Bash on Windows)

A90/100
Install Command
npm install is-wsl
orpnpm add is-wsl
Typosquat Defense
Authentic Name

No similarity to known typosquatting targets.

Lifecycle Scripts
Clean Execution

Zero preinstall or postinstall arbitrary execution hooks.

License Type
MIT

Permissive open-source license. Safe for enterprise & proprietary software.

Package Specifications

Unpacked Size
3.6 KB
Dependencies
1
Maintainers
1
Last Published
Feb 15, 2026
View on npmjs.comGitHub Repository

Direct Dependencies (1)

is-inside-container ^1.0.0
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Frequently Asked Questions

Is is-wsl safe to use in production?
is-wsl received a Security Grade of A (90/100) with a risk evaluation of LOW. It contains zero malicious postinstall scripts.
What license does is-wsl use?
is-wsl is licensed under the MIT license (PERMISSIVE). This is a permissive open-source license suitable for commercial applications.
How do I install is-wsl?
Install it via NPM using: npm install is-wsl, or via PNPM: pnpm add is-wsl, or Yarn: yarn add is-wsl.