prettier-cli

library0.1.0jsnpmunverified

A command-line interface for Prettier, an opinionated code formatter. This package is currently a work-in-progress (WIP) and provides a CLI wrapper around Prettier's API. Prettier itself is at version 3.8.3 (January 2026), with a monthly release cadence. Unlike the standalone `prettier` package, this package aims to offer additional CLI features such as progress bars, better error handling, and configuration validation. It is intended for users who want an enhanced CLI experience while leveraging Prettier's formatting capabilities.

testing devops

npm install prettier-cli

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · PRETTIER-CLI

prettier-cli

testingjavascriptv0.1.0

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ import prettier from 'prettier'

✗ const prettier = require('prettier')

Prettier is ESM-only since v3; require() will fail.

check

✓ import { check } from 'prettier'

✗ import check from 'prettier'

check is a named export, not default.

format

✓ import { format } from 'prettier'

✗ const format = require('prettier').format

Named export, ESM-only since v3.

Demonstrates basic usage of Prettier's format function to format a JavaScript file.

#!/usr/bin/env node import { format } from 'prettier'; import fs from 'fs'; const code = fs.readFileSync('input.js', 'utf8'); const formatted = await format(code, { parser: 'babel' }); console.log(formatted);

prettier-cli --version

Debug

Known issues

breakingPrettier v3 is ESM-only; CommonJS require() will throw.

fix

Switch to ESM imports or use dynamic import().

affects: >=3.0

deprecatedPrettier's CLI `--write` flag is deprecated in favor of `--write` with explicit file list.

fix

Use `prettier --write file.js` instead of `prettier --write .` without arguments.

affects: >=2.0

gotchaPrettier may reformat code even when --check is used; ensure your code is actually formatted.

fix

Always review diffs before committing.

affects: >=1.0

gotchaPrettier does not lint code; it only formats. Use with ESLint for full code quality.

fix

Run Prettier before ESLint to avoid conflicts.

affects: >=1.0

Errors

Common errors & fixes

Error [ERR_REQUIRE_ESM]: require() of ES Module ... from ... not supported.

Using require() to import Prettier v3 which is ESM-only.

fix

Use ESM imports (import ... from 'prettier') or use dynamic import() in CommonJS.

SyntaxError: Unexpected token '??='

Prettier does not support all modern JavaScript syntax by default.

fix

Use the correct parser (e.g., 'babel' for JSX) and ensure Prettier is up-to-date.

Cannot find module 'prettier'

Prettier not installed or not in node_modules.

fix

Run `npm install prettier` to install the package.

Upgrade

Version history

0.1.0latest on npm

Audit

Dependencies

prettierrequiredCore formatting engine; prettier-cli is a wrapper around Prettier's API.

Agent activity

4 hits · last 30 days

node

Resources

githubhttps://github.com/prettier/prettier ↗

packagehttps://www.npmjs.com/package/prettier-cli ↗

homepagehttps://prettier.io ↗