# is-wsl [](https://travis-ci.org/sindresorhus/is-wsl) > Check if the process is running inside [Windows Subsystem for Linux](https://msdn.microsoft.com/commandline/wsl/about) (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 ```js const isWsl = require('is-wsl'); // When running inside Windows Subsystem for Linux console.log(isWsl); //=> true ``` --- <div align="center"> <b> <a href="https://tidelift.com/subscription/pkg/npm-is-wsl?utm_source=npm-is-wsl&utm_medium=referral&utm_campaign=readme">Get professional support for this package with a Tidelift subscription</a> </b> <br> <sub> Tidelift helps make open source sustainable for maintainers while giving companies<br>assurances about security, maintenance, and licensing for their dependencies. </sub> </div>