Integrations guide

    Connect Extension.js with formatting, linting, CSS tooling, and UI component workflows used in modern web projects.

    Choose by need

    NeedStart here
    Add custom transforms beyond SWCBabel
    Enforce code-quality rulesESLint
    Keep formatting consistentPrettier
    Transform CSS with pluginsPostCSS
    Lint stylesheets in CIStylelint
    Build composable UI primitivesShadcn/ui
    Utility-first styling systemTailwind CSS

    Practical integration order

    1. Add baseline quality tools: ESLint + Prettier.
    2. Add style tooling: PostCSS + Stylelint (and Tailwind if needed).
    3. Add framework-specific tooling only when required.

    Next steps

    Video walkthrough