sindresorhus/is-wsl

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

199

stars

commits

JavaScript

primary language

Feb 15, 2026

updated

README

is-wsl

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

Can be useful if you need to work around unimplemented or buggy features in WSL. Supports both WSL 1 and WSL 2.

Install

npm install is-wsl

Usage

import isWsl from 'is-wsl';

// When running inside Windows Subsystem for Linux
console.log(isWsl);
//=> true

Contributors

19 commits

1 commits

1 commits

1 commits

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sindresorhus/is-wsl

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

199

stars

commits

JavaScript

primary language

Feb 15, 2026

updated

README

is-wsl

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

Can be useful if you need to work around unimplemented or buggy features in WSL. Supports both WSL 1 and WSL 2.

Install

npm install is-wsl

Usage

import isWsl from 'is-wsl';

// When running inside Windows Subsystem for Linux
console.log(isWsl);
//=> true

Similar repos

sindresorhus/is-docker

Check if the process is running inside a Docker container

234

same org

sindresorhus/is-inside-container

Check if the process is running inside a container (Docker/Podman)

same org

sindresorhus/environment

Check which JavaScript environment your code is running in at runtime: browser, Node.js, Bun, etc

167

same org

sindresorhus/is-in-ci

Check if the process is running in a Continuous Integration (CI) environment

same org

sindresorhus/is64bit

Check if the operating system CPU architecture is 64-bit or 32-bit (Supports browsers)

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Source code behind the Windows Subsystem for Linux documentation.

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Contributors

19 commits

1 commits

1 commits

1 commits

Languages

JavaScript

98.1%

TypeScript

1.9%