xojs/xo

Health v2 · maintenance only

Adoption not part of the score

7993 stars · 307 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

XO is an opinionated JavaScript/TypeScript linter that wraps ESLint with sensible, preconfigured defaults and bundled plugins. It works as a zero-config CLI tool while remaining customizable via flat config.

Use cases

• lint javascript and typescript files without configuring eslint
• enforce consistent code style across a project
• auto-fix lint issues with xo --fix
• add linting to a project quickly with npm init xo
• stop debating code style in pull requests
• lint a project with prettier-compatible style

When to choose

• you want zero-config linting with opinionated best-practice defaults
• you want TypeScript support out of the box
• you want a single tool bundling useful ESLint plugins like unicorn and import
• your project uses ESM and Node.js

When to avoid

• you need fully custom ESLint rule configurations
• your project is CommonJS (XO requires ESM)
• you need linting for languages other than JS/TS

Facets

cli-tool · maturity active

linter formatter developer-tools cli developer-tools web-development cli cross-platform eslint-wrapper code-style typescript zero-config opinionated command-line javascript nodejs

Member repositories

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markdown · JSON · MCP: product_card(name="xojs/xo")