Rolldown Plugin Prettier

0.0.1 verified Sat Apr 25 auth: no javascript

A Rolldown plugin for formatting build output files using Prettier. Current version is 0.0.1 (pre-release). Designed as a port of rollup-plugin-prettier, it automatically disables Rolldown's built-in minification to ensure Prettier formatting is applied. Key differentiators: mirrors rollup-plugin-prettier API, enforces output.minify: false to avoid conflicts, and supports Node 20.10+. Ideal for teams wanting consistent code style in bundled output.

Common errors

error Cannot find module 'rolldown-plugin-prettier' ↓

cause Package not installed or installed from a different registry.

fix

Run: npm install rolldown-plugin-prettier --save-dev

error [plugin:rolldown-plugin-prettier] Error: Could not load Prettier ↓

cause Prettier not installed as a peer dependency.

fix

Install prettier: npm install prettier --save-dev

error Property 'prettier' does not exist on type 'typeof import("rolldown-plugin-prettier")' ↓

cause Using named import { prettier } instead of default import.

fix

Use: import prettier from 'rolldown-plugin-prettier'

Warnings

breaking Plugin disables Rolldown's output.minify automatically to avoid conflicts with Prettier formatting. ↓

fix Ensure you are not relying on minification; if needed, re-enable after formatting via a separate step.

gotcha Do not use with rollup-plugin-prettier; import path is specific for Rolldown. ↓

fix Use 'rolldown-plugin-prettier' instead of 'rollup-plugin-prettier'.

deprecated Version 0.0.1 is a pre-release and API may change. ↓

fix Pin to exact version and monitor for breaking changes.

Install

npm install rolldown-plugin-prettier

yarn add rolldown-plugin-prettier

pnpm add rolldown-plugin-prettier

Imports

prettier

wrong

const prettier = require('rolldown-plugin-prettier')

correct

import prettier from 'rolldown-plugin-prettier'

Modern import pattern; default export is the plugin function.

prettier

wrong

import { prettier } from 'rolldown-plugin-prettier'

correct

import prettier from 'rolldown-plugin-prettier'

Named export does not exist; only default export.

prettier

wrong

import prettier from 'rollup-plugin-prettier'

correct

import prettier from 'rolldown-plugin-prettier'

Common mistake: using the Rollup plugin instead of the Rolldown variant.

Quickstart

Basic setup of rolldown-plugin-prettier with a Rolldown config. Shows default usage and optional Prettier options.

import { defineConfig } from 'rolldown'
import prettier from 'rolldown-plugin-prettier'

export default defineConfig({
  input: 'src/main.ts',
  plugins: [prettier()]
})

// The plugin sets output.minify to false automatically.
// Additional options can be passed to prettier:
// prettier({ parser: 'typescript', singleQuote: true })