Vite Plugin Babel

Run Babel during any Vite command, also during serve.

Installation

# yarn
yarn add -D vite-plugin-babel

# npm
npm install -D vite-plugin-babel

Usage

Add it to your Vite config

import { defineConfig } from 'vite';
import babel from 'vite-plugin-babel';

export default defineConfig({
    plugins: [
        // Babel will try to pick up Babel config files (.babelrc or .babelrc.json)
        babel(),
        // ...
    ],

    // ...
})

Config

Babel config can be either passed to babelConfig field or via Babel config file. For all babel options see: Babel Options.

By default, babel is run for JS/JSX files. You can change that vie filter option.

Name	Type	Default	Description
apply	serve or build	undefined	Limits plugin usage to only build or only serve. If not specified, will be run during both cycles.
babelConfig	object	{}	Babel Transform Options
filter	RegExp	*	Which files is babel applied to. By default, it's js/jsx files.
loader	Loader or (path: string) => Loader	undefined	This tells esbuild how to interpret the contents after babel's transformation. For example, the js loader interprets the contents as JavaScript and the css loader interprets the contents as CSS. The loader defaults to js if it's not specified. See the Content Types page for a complete list of all built-in loaders.
enforce	pre or post	pre	When to run the plugin. pre means it will run before other plugins, post means it will run after other plugins. see Plugin Ordering for more details.

Tips

Vite team didn't enabled and included Babel by default, because they wanted to keep expirience as fast as possible and esbuild can already do a lot of things, you would probably do with Babel. Because of that, we recommend to only include those Babel plugins you really need. You can use option babelConfig.plugin and disable usage of Babel config file, ex.:

babel({
    babelConfig: {
        babelrc: false,
        configFile: false,
        plugins: ['@babel/plugin-proposal-decorators']
    }
})

or just use .babelrc.json.

License

Library is under MIT License