Command-line tool

xo

npm/xo

Checked 25 Oct 2026, 21:11 UTC · Still published on npm

JavaScript/TypeScript linter (ESLint wrapper) with great defaults cli-app cli xoxo happy happiness code quality style lint linter jshint jslint

Website Source

At a glance

Type

Command-line tool

Install on

Windows, macOS, Linux

Last checked

25 Oct 2026, 21:11 UTC

Install it

Windows

npm install -g xo

macOS

npm install -g xo

Linux

npm install -g xo

Lint files in the "src" directory

xo

Lint a given set of files

xo path/to/file1.js path/to/file2.js ...

Automatically fix any lint issues found

xo --fix

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